Possibly pregnant or just over thinking?

Lakeisha
So I had sex with this guy and he didn't use a condom and he cum in me. Once we were done. He sat there and watched it come out of me. A week or two I didn't get my period, my period was three days late. Then I had it for about three/ four days. Even though that's normal for me. I'll get super nauseous (I think that's how you spell it, sorry really bad at spelling. lol) when I eat. And at work I'll get super dizzy that I have to rest for a minute or two. Someone pleaseeeee help! 😁