Still no period

I started getting horrible AF cramps Sunday. Everyday since then I said I'm going to get my period early because the cramps have been so intense. I have all of my usual PMS symptoms. I was supposed to start yesterday, and nothing. I figured I'd wake up with me period, nope. I was so tired last night I went to be at 8. That's usually sign I'm about to start. And I have had sore boobs and awful cramps for almost a week. They aren't mild at all. Has anyone had this and actually been pregnant?