need help😓

I'm pregnant at this moment but i have a doubt about my baby's father. I had inter course back in July 31 with my ex & ovulated Aug 5 acording to glow. I had inter course with this other guy on August 7 and i found out on august 17 that i am pregnant with a .88 cents test from walmart & it was a clear positive (2 week & 3 days after i had inter course with my ex) & (1 week & 3 days after i had with the second guy) who can possibly be the father?? PLEASE  NO MEAN COMENTS, WE ALL MAKE MISTAKES & I SURE DID LEARN FROM MINE. Tia.