I have felt nausea, super hungry, tired, weak, upper back and arm soreness and pant dont fit any more yet pregnancy test this morning was negative. I also think I may have had implantation bleeding 2 days ago which was 2 days after period ended and three days befor it was suppos sed to start. It lasted five days stopped and then little bit of pink 2 days later. tummy feels tight when i lay down certain way or stretch. Ive been supper moody and boobs feel heavier and look bigger. Am i preggers? Help.