Virgin GF wants me to cum in her when have sex for the first time soon.

I don't think she's on the pill and I dunno if I should ask if her she wants me to bring her a plan b pill?

I am all for starting a family with her but she's in college right now and her mother already does not like me. I unironically think I might be killed if I impregnated her, her family are practicing Christians(Not Catholic) so Birth Control is ok and abortion not so much.

I don't wanna come off as a bore by going "What if I knock you up" type deal, she also seems to reallt value confidence and asking such a thing might make me look insecure.

How do I tell my GF I want her to take plan B if she wants me to nut in her? Or maybe wait a week before her period at least?