Pregnant, feeling guilty, no peace of mind

So, I found out I was pregnant about 2 weeks ago and I messed up by sleeping with my ex that I dealt with, he cheated, had a baby on me, etc. I forgave him but he continued to lie to me about dealing with other women including his baby mother. I know I was dumb to even stick around but I genuinely loved this man unconditionally even though we broke up and still was sleeping with him on and off.

I started messing around with an old childhood friend and he could potentially be the father as well.

I thought it was my exes and told him when I first found out but when I went for an ultrasound and got a due date, I began to doubt and think it’s the other dudes. I went to explain to my ex and tell him the truth to see if he would consider the prenatal dna. He slapped me and even punched me in my stomach and pulled my hair. And I just feel super guilty about even doing this to myself, my child, and those guys.

I tried to move on and went about it the wrong way and caused all this confusion. I have no type of peace of mind and just feeling horrible and guilty for all of this. Honestly. How should I go about this?