Helps you get pregnant faster (Using the Clearblue Fertility Monitor to identify your most fertile days can help you get pregnant faster than not using any method. There is no product available that can guarantee success in achieving pregnancy.). No. 1 OB-GYN recommended brand (Data on file. Research into recommendation of Ovulation Tests & Fertility Monitors with 204 US ob-Gyns (Kantar Health 2011).). Only for use with the Clearblue fertility monitor. 99% accurate (99% accurate in detecting the LH surge in laboratory tests. Ovulation normally occurs 24-36 hours after the LH surge.). 1. These test sticks should only be used with Clearblue Fertility monitors. 2. 30 test sticks for 3 cycles of use. The majority of women will need 10 test sticks in each cycle. Women with irregular or long cycles may have to use 20 test sticks in each cycle. Clearblue Helpline: Monday-Friday 8:30 a.m. - 5:00 p.m. Eastern Time. Toll-free. 1-800-321-3279. Please have the lot numbers from both the outer and inner packaging. Calls are recorded for training and quality control. www.Clearblueeasy.com. Facebook.com/clearblue. Twitter.com/clearblue. Made in PRC. Packaged in USA.