Seems like the regular hookup would be the dad
I'll know for sure once I have my first ultrasound. Thanks girls!
If you're sure the hook up was 2 days before your missed period, that means you were already pregnant when you had sex with the hook up. So the regular guy would be the father considering you would have gotten pregnant after your last period. No way to really be 100% sure without DNA, but it's more likely than not if your dates are correct.
My last period was super weird. It was a week early and lasted 8 days but a few days before it ended it kept acting like it was wanting to stop but kept starting again. And that's not normal for me to start a week early and 8 days is long for me. I have children and I've never had implantation bleeding before but maybe it's possible that's what it was?
It's highly unlikely that the "random hook up" is the father. It's very unlikely you'd test positive 7 days after sex. If it were 10 days, I'd say it's a little more possible.