---
product_id: 47924294
title: "Refill Pack for Advanced Fertility Monitor: 20 Fertility Tests for Ovulation & 4 Pregnancy Tests, 24 Units (Monitor Sold Separately), Packaging May Vary"
brand: "clearblue"
price: "$93.38"
currency: USD
in_stock: true
reviews_count: 13
category: "Clearblue"
url: https://www.desertcart.us/products/47924294-refill-pack-for-advanced-fertility-monitor-20-fertility-tests-ovulation
store_origin: US
region: United States of America
---

# 99%+ accuracy in ovulation & pregnancy detection 89% boost in natural conception Tracks 2 key fertility hormones Refill Pack for Advanced Fertility Monitor: 20 Fertility Tests for Ovulation & 4 Pregnancy Tests, 24 Units (Monitor Sold Separately), Packaging May Vary

**Brand:** clearblue
**Price:** $93.38
**Availability:** ✅ In Stock

## Summary

> 🌟 Own your fertility journey with science-backed confidence!

## Quick Answers

- **What is this?** Refill Pack for Advanced Fertility Monitor: 20 Fertility Tests for Ovulation & 4 Pregnancy Tests, 24 Units (Monitor Sold Separately), Packaging May Vary by clearblue
- **How much does it cost?** $93.38 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/47924294-refill-pack-for-advanced-fertility-monitor-20-fertility-tests-ovulation)

## Best For

- clearblue enthusiasts

## Why This Product

- Trusted clearblue brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Dual Hormone Detection:** Monitors both estrogen and LH for a full fertile window, not just ovulation day.
- • **Discreet & User-Friendly:** Compact, feminine design with easy-to-read results only on the monitor—privacy meets precision.
- • **Data-Driven Cycle Insights:** Review up to 6 cycles on an intuitive touchscreen for smarter family planning decisions.
- • **Clinically Proven Fertility Boost:** Increase your chances of conceiving naturally by 89% with precision hormone tracking.
- • **Early & Accurate Pregnancy Testing:** Detect pregnancy with over 99% accuracy from your period due date, even up to 3 days early.

## Overview

The Clearblue Refill Pack offers 20 fertility and 4 pregnancy test sticks designed exclusively for the Clearblue Advanced Fertility Monitor (sold separately). Clinically validated to increase natural conception chances by 89%, it tracks estrogen and LH hormones to identify up to 6 fertile days per cycle with 99%+ accuracy. The monitor also provides early pregnancy detection from the day your period is due, empowering millennial professionals to take control of their reproductive health with discreet, data-driven insights.

## Description

Product Description Clearblue Advanced Fertility Monitor Refill Test Pack contains 20 fertility tests and 4 pregnancy tests, individually wrapped. The Clearblue Advanced Fertility Monitor is NOT included in this pack. The Fertility Test Sticks from this pack can only be used with the Clearblue Advanced Fertility Monitor (sold separately) or the Clearblue Fertility Monitor; they don’t work with our other Clearblue Ovulation Tests. The Pregnancy Test Sticks from this pack can only be used with the Clearblue Advanced Fertility Monitor (sold separately). The majority of women will need 10 test sticks each cycle. Women with irregular or long cycles may have to use 20 test sticks. Clearblue Advanced Fertility Monitor (not included, sold separately) is proven to increase the chances of getting pregnant naturally by 89% (1). It is designed to identify all your fertile days, typically up to 6, which is more than traditional ovulation predictor kits that detect LH only. It is discrete, feminine, and handheld, and tracks two key fertility hormones, estrogen and luteinising hormone. It shows your fertility information on the easy to use at home touch screen as well as summarizing up to 6 cycles data on one screen for easy comparison. Clearblue Advanced Fertility Monitor is also the only monitor to enable you to test for pregnancy. It’s over 99% accurate at detecting pregnancy from the day your period is due. It also predicts when you can test – up to 3 days before your period is due. (In clinical testing with early pregnancy samples Clearblue Advanced Fertility Monitor gave the following results: 96% of women received a ‘pregnant’ result 1 day early, 91% of women 2 days early, 74% of women 3 days early.). (1) In the first 2 cycles of use. Robinson JE., et al. Fertility & Sterility (2007) 87: 329-334. Ingredients 20 Fertility Tests, 4 Pregnancy Tests Directions The Clearblue Advanced Fertility Monitor is NOT included in this pack. The Fertility Test Sticks from this pack can only be used with the Clearblue Advanced Fertility Monitor (sold separately) or the Clearblue Fertility Monitor; they don’t work with our other Clearblue Ovulation Tests. The Pregnancy Test Sticks from this pack can only be used with the Clearblue Advanced Fertility Monitor (sold separately). Fertility: These tests should only be used with a Clearblue Fertility Monitor (Clearblue Advanced Fertility Monitor or Clearblue Fertility Monitor). You must read the instructions supplied with your monitor before using these tests. If you are using the Clearblue Advanced Fertility Monitor, please also read this leaflet carefully before testing. For self-testing at home. For in vitro diagnostic use only. Not for internal use. Do not reuse test sticks. Keep out of reach of children. Store at 2° – 30°C. Bring to room temperature for 30 minutes if refrigerated. Do not use if the foil wrapper containing the test stick is damaged. Do not use a test stick after the ‘use by’ date. Pregnancy: These tests must only be used to test for pregnancy using the Clearblue Advanced Fertility Monitor. They cannot be used with any other Clearblue monitor. You must read the instructions supplied with your monitor before using these tests. When using the monitor for the first time you will need to set a new cycle before testing for pregnancy. For self-testing at home. For in vitro diagnostic use only. Not for internal use. Do not reuse test sticks. Keep out of reach of children. Store at 2°–30°C. Bring to room temperature for 30 minutes if refrigerated. Do not use if the foil wrapper containing the test stick is damaged. Do not use a test stick after the ‘use by’ date. Safety Warning The Clearblue Advanced Fertility Monitor is NOT included in this pack. The Fertility Test Sticks from this pack can only be used with the Clearblue Advanced Fertility Monitor (sold separately) or the Clearblue Fertility Monitor; they don’t work with our other Clearblue Ovulation Tests. The Pregnancy Test Sticks from this pack can only be used with the Clearblue Advanced Fertility Monitor (sold separately). The result of the tests can only be read on the monitor and cannot be worked out by any lines you might see on the test. Fertility: There are certain medical conditions and medications that can affect your fertility result. You may get misleading results if you:• have experienced menopausal symptoms, e.g. night sweats , hot flushes• have polycystic ovarian syndrome (PCOS)• have impaired liver or kidney function• are pregnant, or have recently been pregnant (even if not carried to full term)• are using hormonal treatments, e.g. hormonal contraception, fertility treatments ,hormone replacement therapy• are using any other treatments which may affect your cycle• are taking antibiotics containing tetracyclines. Once you have finished your treatment you may start using Clearblue Advanced Fertility Monitor at the beginning of your next cycleIf you do get unexpected results you should discuss them with your doctor.You are advised to wait until you have had at least 2 natural menstrual cycles in a row (both lasting 23 - 37 days) if you have recently been:• breastfeeding• using hormonal contraception or treatments• using any other treatment which may affect your cycle• pregnant (even if you have not carried to full term).Always read the manufacturer’s instructions for any medication you’re taking before using Clearblue Advanced Fertility Monitor. Some medications are contra-indicated in pregnancy. We recommend that you consult your doctor if you are taking any medication before you try to get pregnant. If you have medically diagnosed fertility problems you should ask your doctor if Clearblue Advanced Fertility Monitor is suitable for you.Pregnancy:Some medication or medical conditions can affect your pregnancy test result:• Always read the manufacturers’ instructions for any medication you are taking before conducting the test.• Fertility drugs containing hCG can give misleading results (these fertility drugs are usually given by injection, and testing too soon after administration may give a false ‘Pregnant’ result).• Other fertility therapies, painkillers and hormonal contraceptives (e.g. contraceptive pills) should not affect the result.If you have recently stopped taking hormonal contraception or are using fertility therapies, your periods may be irregular, leading you to test too soon. • If you have recently been pregnant (even if not carried to full term) you may get a false ‘Pregnant’ result. • Ectopic pregnancy, ovarian cysts, menopause and some very rare medical conditions can give misleading results.• If you have a ‘Pregnant’ result it is possible that you later find that you are not pregnant due to natural loss of the pregnancy which can occur in the early stages.If you do get unexpected results you should discuss them with your doctor. Box Contains 20 x Fertility Tests Sticks & 4 x Pregnancy Test Sticks Manufacturer Contact Information SPD Swiss Precision Diagnostics GmbH, Route de St Georges 47, 1213 Petit-Lancy, Geneva, Switzerland. GB: 0800 917 2710; IE: 1800 812 607

Review: Does the job! - Fantastic little gadget! Helped me conceive very quickly by understanding my cycle! I Had the clear blue advanced digital test. It did mean that the pregnancy test that come with the kit didn’t work with the digital stick, but I used them as a standard pregnancy test without plugging it into the machine and got my positive result which I then checked with proper test! I had read some reviews on here that said the sticks didn’t work- I had one stick that wouldn’t work but for the price I didn’t find it a problem!
Review: Totally worth the money - Had been trying to get pregnant for 2 months before we began using the fertility sticks and advanced fertility monitor. By cycle 4, I was pregnant. Sticks are expensive and an inconvenience as you have to keep re-ordering them as run out quickly.. but saying that, the sticks and monitor tracked my high/ peak days with accuracy so for us, totally worth it. Currently 13 weeks pregnant :) would recommend.

## Features

- 20 fertility tests and 4 pregnancy tests to be used with a Clearblue Advanced Fertility Monitor
- Clearblue Advanced Fertility Monitor is proven to increase the chances of getting pregnant naturally by 89% (1)
- Clearblue Advanced Fertility Monitor tracks 2 key fertility hormones – designed to detect all your fertile days
- Hormones are a more accurate predictor of ovulation than basal body temperature (BBT), which only rises after ovulation
- Clearblue Advanced Fertility Monitor is the only monitor you can also use to test for pregnancy
- The most advanced Fertility Monitor, clinically validated by ultrasound (Clearblue ovulation assay showed 97% agreement with ultrasound observed ovulation. Behre HM., et al. Human Reproduction (2000) 15: 2478-82)
- 99% accurate at detecting the LH surge and over 99% accurate at detecting pregnancy from the day your period is due

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00H4Y9EV6 |
| Best Sellers Rank | 6,004 in Health & Personal Care ( See Top 100 in Health & Personal Care ) 8 in Ovulation & Fertility Test Kits |
| Brand | Clearblue |
| Brand Name | Clearblue |
| Country Of Origin | China |
| Customer Reviews | 4.4 out of 5 stars 1,743 Reviews |
| Global Trade Identification Number | 04015600994976, 04015600994983 |
| Item Part Number | CBOSUPERSTICK |
| Manufacturer | SPD Swiss Precision Diagnostics GmbH |
| Manufacturer Contact Information | SPD Swiss Precision Diagnostics GmbH, Route de St Georges 47, 1213 Petit-Lancy, Geneva, Switzerland. GB: 0800 917 2710; IE: 1800 812 607 |
| Manufacturer Part Number | 81456314 |
| Model Name | Clearblue Tests |
| Model Number | 81456314 |
| Model name | Clearblue Tests |
| Number of Items | 1 |
| Number of Pieces | 24 |
| Number of pieces | 24 |
| Special Features | Increase the chances of getting pregnant naturally by 89 Percent |
| Special feature | Increase the chances of getting pregnant naturally by 89 Percent |
| Specific Uses For Product | Fertility Testing Kits |
| Specific uses for product | Fertility Testing Kits |
| Test Type | ["teinizi"] |
| Test type | ["teinizi"] |
| Unit Count | 24.0 count |

## Product Details

- **Brand:** Clearblue
- **Model name:** Clearblue Tests
- **Number of pieces:** 24
- **Special feature:** Increase the chances of getting pregnant naturally by 89 Percent
- **Test type:** ["teinizi"]

## Images

![Refill Pack for Advanced Fertility Monitor: 20 Fertility Tests for Ovulation & 4 Pregnancy Tests, 24 Units (Monitor Sold Separately), Packaging May Vary - Image 1](https://m.media-amazon.com/images/I/81dbxgie0-L.jpg)
![Refill Pack for Advanced Fertility Monitor: 20 Fertility Tests for Ovulation & 4 Pregnancy Tests, 24 Units (Monitor Sold Separately), Packaging May Vary - Image 2](https://m.media-amazon.com/images/I/71qY3Nntg5L.jpg)
![Refill Pack for Advanced Fertility Monitor: 20 Fertility Tests for Ovulation & 4 Pregnancy Tests, 24 Units (Monitor Sold Separately), Packaging May Vary - Image 3](https://m.media-amazon.com/images/I/811JCbqPRqL.jpg)
![Refill Pack for Advanced Fertility Monitor: 20 Fertility Tests for Ovulation & 4 Pregnancy Tests, 24 Units (Monitor Sold Separately), Packaging May Vary - Image 4](https://m.media-amazon.com/images/I/71ul1y7AU4L.jpg)
![Refill Pack for Advanced Fertility Monitor: 20 Fertility Tests for Ovulation & 4 Pregnancy Tests, 24 Units (Monitor Sold Separately), Packaging May Vary - Image 5](https://m.media-amazon.com/images/I/71jTm1k1qvL.jpg)

## Questions & Answers

**Q: I have the older version of the fertility monitor and I've always been able to buy the sticks. Can I use these sticks with my old monitor?**
A: Please ignore the people saying these sticks do not work in the old monitor. The advanced fertility sticks can be used with both the old and new monitor. This is confirmed on the Clearblue website which states:"The Clearblue Advanced Fertility Monitor fertility tests are in purple foil and the tests are half purple / half white with a purple cap.Which monitors are right for these tests?Clearblue Advanced Fertility MonitorClearblue Fertility Monitor"The front of the box also states the same.Please note however that the 4 pregnancy tests that come in this pack can ONLY be used with the new advanced monitor.

**Q: Why does clearblue not sell a pack of the refill ovulation strips only? I do not want the 4 pregnancy tests as well as have no monitor to test them in**
A: Hi,That is a very good question and one that we have asked Clearblue/P&G many times. earlier this year they were looking to launch a monitor stick only test pack but changed their mind for reasons only be known to them. We are sorry that we can not offer you a more positive answer.

**Q: I heard that the Clearblue Fertility Monitor UK is not "approved" for use in the US. Is this true and if so, why?**
A: All you do is pee on a stick so the device itself can't be harmful :) I think this is more to do with different markets/product tax treatments. It makes sense that 'monitor UK' shouldn't be officially sold in the US. You probably have a US version which may even be cheaper!

**Q: Why am i still being asked to test on day 24? My ovulation peak has been and gone. Surely I am wasting tests?**
A: Yes you are wasting tests. I didn’t test after the peak times as there was no point. I only used them for the first time so that that the machine learnt my cycle.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Does the job!
*by P***A on 5 July 2019*

Fantastic little gadget! Helped me conceive very quickly by understanding my cycle! I Had the clear blue advanced digital test. It did mean that the pregnancy test that come with the kit didn’t work with the digital stick, but I used them as a standard pregnancy test without plugging it into the machine and got my positive result which I then checked with proper test! I had read some reviews on here that said the sticks didn’t work- I had one stick that wouldn’t work but for the price I didn’t find it a problem!

### ⭐⭐⭐⭐⭐ Totally worth the money
*by J***J on 18 May 2019*

Had been trying to get pregnant for 2 months before we began using the fertility sticks and advanced fertility monitor. By cycle 4, I was pregnant. Sticks are expensive and an inconvenience as you have to keep re-ordering them as run out quickly.. but saying that, the sticks and monitor tracked my high/ peak days with accuracy so for us, totally worth it. Currently 13 weeks pregnant :) would recommend.

### ⭐⭐⭐⭐⭐ Great tests but cost too much.
*by N***A on 28 July 2019*

Great product, easy to use. One box should last you 2 cycles. However, if the monitor doesn't pick up your peak, you end up using more than 10 tests, and this can cost you money. They are not cheap to buy.

## Frequently Bought Together

- Clearblue Refill Pack For Advanced Fertility Monitor: 20 Fertility Tests For Ovulation & 4 Pregnancy Tests, 24 Units (Monitor Sold Separately), Packaging May Vary
- Conceive Plus Fertility Lubricant Gel, Fertility Friendly Lube for Couples Trying for a Baby - 30ml / 1 fl oz

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.us/products/47924294-refill-pack-for-advanced-fertility-monitor-20-fertility-tests-ovulation](https://www.desertcart.us/products/47924294-refill-pack-for-advanced-fertility-monitor-20-fertility-tests-ovulation)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-11*