Pap Smere (Not sure if spelled right..)?):

I'm so scared.... I go in for my first pap smere Monday. I know I may be a little late getting it since I am 20 but, what should I expect to happen? ): I have sex but not alot (twice a month)and being in school, I don't want to risk getting pregnant yet..I want my child to have the best future possible. I am also very irregular, I might have pcos but not sure. But yeah, anyways, thanks so much in advance.