Late period

I was supposed to get my period today however that didnt happen, i ATTEMPTED sex with a condom when I was ovulating (according to eve) my boobs are super sore which usually happens before I get my period however we checked the condoms and they didn't break. And he also didn't ejaculate in the condom while we were using it My period really just comes when it wants to. Any ideas on why my period is late?

I have been freaking out all night last night talking to myself thinking I'm pregnant