Had period now morning sickness?

A few days ago I woke up with really bad nausea, not vomiting just the sensation that I was going to throw up. later throughout the day I experienced what felt like the worse cramps that I've ever had in my life. They lasted all day accompanied with pain in my lower back. The cramps and most of the pain in my back have gone away but the nausea hasnt gone away completely it comes and goes away after a few hours.

I dont think I'm pregnant. My boyfriend and I had sex a few days before my period was supposed to come. I had my period but it wasnt like it normally was. It came early and although I had heavier bleeding the first day it was a lot of old clotted blood, and then the last 5 days of my period was on and off again spotting.

A little bit of a time frame I had sex on the 27th of Jan, started my period on the 28th my spotting stopped on the 3rd and the insane cramping started on the 5th of February, and today is the 8th. Is it possible that I'm having morning sickness and I'm pregnant??