I really wish I felt more comfortable talking about sex

I just always feel awkward and self conscious especially because I come from a very religious conservative background and have only recently become sexually active. I'm in a long term committed relationship and I've gotten over the initial waves of emotion and doubt but now I have some trouble opening up to people about being sexually active. That being said, I'm a grown woman and I am completely sure that I want to spend the rest of my life with my partner. I'm 19 in college and still live with my parents so I don't know if that plays a part but yeah.