Hi me and my gf had sex 2days rigth after her period has ended. I didnt use a condon for abou 10sex but im pretty dam sure no precum was on me but right aftr those 10sec i put a condom on right away. Shes on BC and has been n them for about 5months. She had stomach pains right aftr we did it but no more so i think it was a virus but im still kinda worried she may be preg do you think she is?