i am 20yrs old!, my fiancee and i are sexual active, its 6 more days left in the month and we just recently had intercourse!..But i notice i does have upset stomach, headaches, n my nipples are sore, i want to kno why am i havin these headaches?? also i had bleed on day for 2 months now, i want to kno why are im havin headaches? do u think im pregnant??? plz respond urgently!!