I had sex with Guy A on June 13th. That same day I took a morning after pill writhing 24hrs to be safe. I came on my period June 26th......... that same week July 1st I slept wit Guy B. He came inside of me. I missed my period that should have been July 29th. It's driving me nuts but who would be the father?? My period in May was the 26th-30th. In June it was the 26th-28th. It's always irregular on length. What's your option on paternity?