losing v-card

My boyfriend and I have been dating for almost a year now and we're both virgins. We've done pretty much everything except for sex (and anal) and we can openly talk about sex with each other. We love each other, and have been very loyal. We both really want to have sex and we're both very educated about the consequences. I know it's safer to do it when I'm not in my fertile window, and he has condoms. Although I'm still nervous of getting pregnant... And advice on how to clam my nerves?