I was hoping to get some advice, this was my first month using this app and tracking my period. My periods are usually pretty regular and always end up coming but this app is saying in late? Like I said, I’ve never tracked my period before, I don’t know what days it comes or how long my cycles are. All I know is that it always ends up coming around the same time. So what effects the predictions and should I be worried? I also want to add that me and my boyfriend have sex pretty frequently and We use condoms. Any advice would be greatly appreciated thank you!

My boobs are also very sore, I did have very light bleeding around a week ago so maybe that was it?