I was wondering if a girl can get pregnant by a guy with a smaller sized penis. I'm not exactly the biggest maybe 4-4 1/2 inches long erect. We're not worried about being pregnant right now cause we're using condoms now like we should but when we're married and want children will I be able to get her pregnant? I'm worried that I won't be able to have a child with her when we're ready. Thanks for the info.