Me and my gf had sex the day she ovulated. I didnt come inside her. I was on her back but after I finish sperms were on her back. While I clean her ass and back with a napkin, I used the same napkin, which has a bit sperm, for the top of her vagina and she said she felt something inside her. 20 hours later she took plan-b. First 2 days she had abdominal severe pain. We were waiting her menstrual cycle 10th or 11th august. 11th august we got a pregnancy test and it was negative. 11th august at 4 pm she bleed, intensive and red. The last day her blood is lighter and brigter than it normally is. 13 august 5 pm his bleeding was over.
Do you think she might be pregnant?