I was wondering if my girlfriend is pregnant? We had sex probably 20 times when she was ovulating (long distance relationship). Exactly 7 days after her final day of ovulation she started getting cramps and feeling dizzy. She feels dizzier after eating and waking up. Within a 48 hour span she she might have filled up a total of one tampon. She told me it was a brown and bloody mix. It stopped for a day and now she's getting a little sticky brown discharge when she wipes. She's not supposed to get her period for another 5 days and has been regular for years. She said she usually fills 5 tampons a day when she's at the height of her period. Also, the kicker is she was on antibiotics when she was ovulating which I heard decreases the effectiveness of the pill. We're both not sure what to think. I think she's pregnant, but her first pregnancy test came back negative.

