Clearblue Advanced Fertility Monitor Fertility Test pack contains 30 fertility tests, individually wrapped. These test sticks are for use with any Clearblue Fertility Monitor (Monitor sold separately).Clearblue Advanced Fertility Monitor comprises an easy to use touch screen Monitor with simple urine tests and is proven to increase the chances of getting pregnant naturally by 89%*. By accurately tracking 2 key fertility hormones, estrogen and luteinising hormone (LH), it is designed to identify ALL your fertile days. You can record when your period occurs and also when you have intercourse. The Monitor displays all your fertility information on a monthly calendar screen and there’s also a summary chart that shows you up to the last 6 cycles of key data.*In the first 2 cycles of use. Robinson JE., et al. Fertility & Sterility (2007) 87: 329-334.