Help!

Please no judgement here. This is a serious question. I am now 4 days late. Never been this late and I'm showing no signs of AF other then a cramp here and there. But I'm trying to figure out, if I am pregnant who the father would be. I slept with one guy the day after my period and he wore a condom and pulled out. Then I got back with my boyfriend and we slept together 2 weeks after that. My current boyfriend knows what's going on and how I slept with another guy, but I told him I'm 99% sure it would be his. Can you ladies give me any advice?