So this is really embarrassing and I don't want any negative comments please but, On day 6(3day after my period ended) I cheated on my SO :( it was some thing will never happen again however, I know I ovulated on day 13 and me and my SO had had sex that day now comes the sticky part. I'm pregnant, I truly believe it is my SO the got my pregnant but what is the likely hood it could have been the other person?