Im worried that I might be pregrent and my boyfriend said that pre- can't get me pregrent

Your boyfriend is wrong, and it's pregnant, not pregrent.

How old are the two of you?

You most definitely can get pregnant (notice the spelling) from pre. The pull out method is not considered birth control, it's considered trying to conceive.

You'll have to wait until your next period. If you miss it, wait two weeks and then test using first morning urine.