Clearblue Advanced Fertility Monitor Refills 20 Fertility Tests + 4 Pregnancy Tests

The fertility monitor test refill Clearblue contains 20 fertility tests and 4 pregnancy tests.| Fertility tests are intended for the Advanced Fertility Monitor Clearblue and the Fertility Monitor Clearblue. They are 99% reliable.| Pregnancy tests should only be used with the Advanced Fertility Monitor Clearblue. They are 99% reliable.| Most women need 10 tests per cycle. If you have long or irregular cycles, you may need 20 tests.