I had sex with my grlfrnd on 16th of june...condom got torned...I ejaculated outside but not sure about the precum...she took I pill in btwn 20 hrs from sex...she wud have been on her periods on 21 or 22 of june...but it has not happened yet...! But she has pain in her stomach sometimes which she usually have at the time of her periods! Help me with this problem...!