I like adding whenever I have sex to my log on this app. My boyfriend knows this and sees me do it from time to time. But typically the app is wrong about my period by a couple days. Sometimes even 3-4. Even though I’ve been using it for roughly a year. It’s also wrong about my ovulation due to this. I only know because sometimes I bleed a tiny bit during it and itll be days after the predicted date and I tend to crave to want to binge eat right after my ovulation. If he sees we had sex during the predicted time of my ovulation, he gets scared. Is there a better way to tell when I’m actually highly “fertile”? We always practice safe sex anyway but for a better piece of mind?