Okay so for the past week I have been experiencing sore nipples, not cramping but some type of movement in my stomach, also I've been having to pee more often and my appetite is so bipolar that I would make something to eat because I'm starving but when I go to eat I can't....AF is due sometime next week and I've never felt anything like this before. I have had sex more than a few times these past few weeks what should I do?