Short cycle

I have a short cycle like 21 or 22 days I don't know When I ovulate.. I got my period may 26 and it ended June 1 St then I had sex the day after it ended and the guy which is my ex now said he pulled out At the last minute.. then a couple days after that I had sex with this guy I've known for a while now it was fast and I don't remember him pulling out. Is there a chance I will be pregnant? I'm just scared of not knowing Who the father could be. This is not me At all I just Let my hormones get the best of me. So Who do you think could be the father if I do turn out to be pregnant... my ex (guy A) or the other guy (guy B) Please don't judge