shameful anxiety post about sex

So me and my partner had sex twice before my period (I haven't started yet). Once on what would have been my last day of ovulation (I'm on the nuvaring so I shouldn't be ovulating). 
This is tmi and I highly apologize. 
Once he finished anally and the other he finished orally. Yet, all because I'm pretty sure I overheated around 3:30 this morning and threw up, my anxiety is going through the roof about the possibility of pregnancy. I'll admit, we didn't use a condom either time, but when he would switch over to where he finished, he was far from finishing and like I said I'm on the nuvaring. Someone please tell me I'm being ridiculous so my anxiety will chill out.