So its been over two months now and i still havent gotten AF. I've taken many HPT's and gotten a blood test done at the doctors for pregnancy and all NEGATIVE, but i'm still not getting my period. Im sure it isnt stress because i'm really not stressed out, not really even about not getting my AF. The thing is, i talked to my mom and i guess she didnt find out she was pregnant with me (her first child) until she was four months along (even after 3 exams and 3 preg tests). So the thing is i'm wondering if i could still be pregnant even if the blood test was negative? Ive been sick to my stomach, boobs getting bigger, headaches, EXTREME fatigue, and weight gain (especially in my stomach). So what do you guys think? could i still be pregnant?