I fucked up big time

I had sex with two different people..... I recently broke up with my ex and I rebounded to try to make myself feel better it was stupid. The second guy had a condom on but he bought latex which I'm allergic to and I started to burn so he took it off. I don't know if he came in me, we were both drunk and I'm honestly so scared and feel like such a who're because if I am pregnant I won't know who the dad is...

My period is supposed to start In 8 days but it's usually early by a few days...

The 16th and 18th are my ex

The 22 is rebound