my last period was on august 20 and i had slept with my bf on sep 3 and another guy on sep 8 and another guy on sep 14...i am confused and dont know who the father is? and my next period would of been on sep 17. i had searched questions after questions and really hope its my bf baby. i had searched a ovulation calculator and it say august 31 to september 4 is my most fertile days..so who do you think is the father of my baby???and my due date is may 28/10 Is there a paternity test to find out who the father is?