I've never had sex before, but my boyfriend and I fool around sometimes. i took plan B pill on Aug 4, just to be safe because i was scared that, after cuddling naked, i would get pregnant. my period in September was a bit late, and my period in October was late, but only by a few days. my last period was October 22, but it wasnt normal, it consisted mostly of blood clots. On top of all this, i quit my job, am stressed about university, have gained weight, and am also treating a recurrent yeast infection with antibiotics given to me by a dr. there was an incident (i cant remember if it was before or after my last period) where my boyfriend rubbed his penis on my vagina, but didn't actually go in(ive never had intercourse) . i went to a clinic to get a urine test and it came out negative, but i am still very very anxious and worried because Ive never been this late before. im already 12 days late and i still havent gotten my period. Why could this be, and is there a chance i may be pregnant?