I am 18 years old, I weigh 110, and I'm 5 feet tall. April 15th 2011, I had sexual intercourse without a condom using the pull out method. I did start my period April 20th. On May 5-7 I had intercourse again and he ejaculated in me, I found out I was pregnant May 21st. I do not know which man can be my child's father? I'd love the help, thank you.