Do I have to tell you when I don't get my period or just when I do get it

Okay, so you only need to tell the Soso app when your period starts. You don't have to log when it doesn't happen.

The app automatically figures out your cycle based on the dates you put in, so you just log the first day of bleeding. That's the super important one to remember. You can also log when your period ends, and that helps the app know how long your period usually lasts.

But the main thing is hitting that "start period" button. The app does all the counting and predicting based on those start dates. You can also log all sorts of other stuff, like how you're feeling, if you have cramps, or how your energy is doing, so you get a full picture of your whole cycle, not just when you're bleeding. It's pretty cool how it shows you what's normal for your body!