Morning sickness or food poisoning?

I was at home on Saturday with my boyfriend, I had one drink (one shot) amd some pizza.. Then I went and layed down. About 3 am came around when I woke up, super nauseous. I ran to the bathroom and I swear everything but the kitchen sink came back up. I felt normal after I threw up and went back to sleep. Should I take a hpt? My bf keeps joking that "junior" is in there but as far as I know, he never came in me but maybe he did and hasn't told me? I'd be super happy if I was preggo! :)

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