Pregnant or not?

Hi

I am so confused right now…. a couple of weeks ago I lost my virginty with a guy at a party I was at. Now I am worried that I might be pregnant. Friends that I have talked to don’t think I could be because he pulled out before he came…. can I still get pregnant that way. I’m not on the pill and he was not using a condom(oh why do i drink)… I am 5 days late, and I haven’t been late since I was 14 (I’m 19)… I am always able to predict to the day when I am going to get it. Plus I have had a few of the other symptoms, like i have been throwing upin the morning, etc,… I was going to take a home pregnancy test but feel silly getting all worked up if there is no chance that he could have even gotten me pregnant. Can someone help me???