Fear that I can’t have kids....

I am 27 years old my bf and I have been trying to have a baby for about 8 months now, so far no success we only used pre seed once and it didn’t work so we are going to just have sex until it happens. I have always wanted to be a mom but my worse fear is that I am infertile and can’t have any babies. I know if I wasn’t able to have kids my doctor would have told me long ago. Going for a Pap smear anything I should ask before I get it done.