Is it possible that I can be 6months pregnant, and still get my period, but have all of the pregnancy symptoms, I feel nauseous and uneasy at random times a day, I feel little fluttery or gas bubbling around my stomach, I have a hard time sleeping, I can't lay on my stomach or I'll feel nauseous and wanna puke but I don't I just get the gagging reflexes, my periods are always irregular but this time it was weird, I had it heavy for 2 and a half days, but lightly bleed for a day, and that was it,my stomach gets hard once awhile whenever I'm walking around or laying down, I also have back pain and I feel like someone is punching my rib cage once inawhile to, but i just think that's cramps...I'm not to sure if I'm crazy or I'm just paranoid that i can't be pregnant.