What is wrong with me??? Ladies question

Ok, so my period is late. How far- I don't know, all i know is that I always get mine a few days before my daughter. Well she got hers on Wednesday. So of couse being late, I have now done 3 pregnancy tests, all negative.  (That is a GOOD thing) But I am starving, and I am carb craving and no matter what I eat I can't get full. Anyone have any ideas? I am hoping that maybe this month was anovulatory and therefore my hormone are just screwed up. But seriously I am crapping bricks over here.
I go see the DR for my monthly appt on Tuesday.

I don't know your age but I know for me when I hit 30 my period went nuts and changed cycle every few months. When you lose a drastic amount of weight the same thing can happen and it can take some time for your body to totally adjust to all the changes. Good that you have a  doc appointment on Tuesday to find out for sure...all I can tell you is my own experiences. Good luck!

I'd make an appt with your gyn just to be certain about everything.

Thanks ladies, apparently all I had to do was ask. Right after dinner tonight, my "visitor" showed up. And par for the course now the thought o food makes  my tummy hurt. lol.