So I came off my period on the 26 of October.Me and my boyfriend had unprotected sex like everyday that week and last week as well. My boobs have been really hard and painful to touch since last week. I had cramping in my lower stomach and back and ive been sleeping alot.I feel really bloated and gassy and hate I cant stand the smell of fry food. I feel like im never full but nothing taste good or Ill want the food then when I see it grosses me out. O and I have being peeing alot but that started this week. I took a pregnancy test this past friday and it was negetive. I threw up a few times but it wasnt in the morning so I thought I had food poisoning.I dont know what to think. I have never missed a period I get a monthly I just dont know the specific day it suppose to arrive. So does anyone have any advice they can give me?