Pregnancy symptoms maybe?...

Af was supposed to start today, but of course it hasn't yet. This cycle is just so different from what I usually have. I usually crave chocolate or sweets, but right now I don't want any of it. I'm also usually really aroused when Af is due, but of course I'm not really feeling anything. I've been so tired here lately. I don't really wanna eat anything. I ate Burger King yesterday and threw it all back up. My nipples are tender and my breast are a little sore.. I've also been getting such bad headaches here lately..