A few questions?

Angelina

So I don’t know much about pregnancy, I’m 20 and thought I was pregnant one time last year but my period was just late lol. My boyfriend and I had unprotected sex 2 weeks ago (and since then). But I felt super sick this morning. I drank sink water, which I do sometimes when I run out of water in the gallon and I’m always fine but I had to take a few minutes away from work this morning because it hit me so bad. That’s the only thing I thought it could be tho, because I didn’t eat yet (usually don’t till around 9 am and this was 7 ish that it happened) now Ik no one can tell me if I’m pregnant. But did this happen to anyone before finding out they were pregnant? I also don’t have any period symptoms rn. My boobs usually get sore a weekish before my period and they’re not. Says it should be coming on the 11th this month. I also had a dream I was pregnant, which Ik could mean a bunch of different things I’m just paranoid now because I did have unprotected sex.