Questions about sex and vaginal birth

Did anyone of all the already September/October mothers did have a natural birth after having almost NO sex or not sex at all throughout the pregnancy? I'm very concerned because my husband didn't want to have sex during this past 9 months, (we tried and it hurt like hell and he wasn't amused seeing me suffer), and now I think my vay jay jay is so tight and closed that I'll not be able to have a vaginal birth.
I just told a friend today that I didn't have any sex during my pregnancy and she told me that I was headed for a C-section.
*Sorry if this is a stupid question.