Help!

I had protected sex with a condom on day 20 of my cycle, which is the day I assumed I ovulated as I noticed egg white CM although <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">eve</a> predicted it to be day 17. Period was predicted to arrive on day 30, but it's day 33 now and I'm still not seeing any period. I feel a little bloated (not as much as the past few days), and I'm experiencing cramps since day 31 now. No spotting, with a little sore boobs. My cervix is low, firm and open. I felt really easily irritated and short tempered these few days. CM is sticky/ a little creamy in light amounts. I'm really worried and stressing because I'm not ready to be a mother if I am really pregnant.