Who is the daddy

Ok so my last period started on 19th Jan, I had sex on the 30th about 11pm  which is peak fertility according to Glow  with an ex (shit happens please don't judge me) but took the emergency contraception on the 1st Feb! As he lives out of town that was the earliest but still within 72hrs right. I Then had sex with Man who is supposed to my man on the 6th Feb no prevention this time... Quite close to ovulation but not quite... I am 2-3 weeks pregnant. I'm going out of my mind who's child is it! I really don't want to have an abortion but it could prevent a lot of embarrassment if I do... Please help.. I'm making myself ill with worry. Thanks