Ladies, I'm freaking out please help.

I know girls post all the time asking if they are pregnant or not and there's no way you could tell them but I need some girls that could just talk to me about this. I was supposed to get my period 5 days ago and it hasn't come yet. When my bf and I had sex we used a condom and it didn't break. So idk why I'm late. I've never been late before. What could be wrong?