Reclaim your sexual health naturally and download the app Natural Cycles, which is designed to track your body's temperature. The app will show your fertility for the day. A woman is fertile up to six days per cycle. The fertile window ends with the day of ovulation and begins up to five days before, depending on sperm survival. Natural Cycles carefully studies your body temperature to find your ovulation day and fertility. With over 15,000 users and a total of 420,000 days on NaturalCycles there have been zero unwanted pregnancies.
