virginity

I am 17 years old and I am a virgin. I am not ashamed of being a virgin but all of my friends tell me I should just get it over with. I was sexually assaulted in my childhood and so I take sex very seriously I want to wait till I'm married because it gives me a sense of comfort that they won't leave me, but sometimes I wonder if I am just being unrealistic. All of my friends aren't virgins and they all tell me to do it.