Ok. so I made a huge mistake and I just cant help but to worry each and every day. My periods have never been regular and its normal for me to miss a period. On the 6th of April 2009 I slept with someone when i was drinking realized, there was no protection. Then I slept with someone again on the 11th of april. My last period was March I can not remeber 27th or 28th. I am worried i can not determine the father! can someone please help me? Both men are willing to sign, but i really want to know who i need to have sign.i stress over this now becuase i want to know. I need to know. i dont have a doctors appointment for awhile all around me are full. When i went to a clinic and gave the first day of my last period she nurse said it was concieved the 10th of april. i was not with anyone. is there anyway she was off a few days?