I’m a little nervous

So I am pregnant. My last period was June 25th through at least the 30th. I had sex with two different guys in the same week I was ovulating. The first guy did not cum inside me, but I did wipe it off his penis and put it back inside. That day it said a medium chance of getting pregnant, a couple days later maybe 2-3 I had sex with another guy. He came inside me and my chance that day was very high of getting pregnant. Now I’m pregnant and I am nervous who the father is. It has to be the second guys correct? The first guy also says he takes a lot of steroids to where it has made him lose his sperm count.