Did anyone ever missed their period ? But wasn't pregnant ?

I'm so confused because I haven't gotten my period this whole month so far (12 days late as far as what <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Eve</a> is telling me). But the last time I did anything sexual my period was already late by just a couple of days and it wasn't vaginal but I heard that cum or precum can still travel. So right now, I'm totally confused. Can I be pregnant ? Or Did my period just skipped this month unexpectedly ?

Anything will help . Thank you.