Conservative parents

So, my parents are really conservative. Like, youre going to hell if you have sex before marriage kind of conservative. I slept with my bf the first time awhile ago (he has yet to talk to my dad so they won't even consider him my bf yet). If they find out, which I bet they will, I'm afraid of what they'll do or say. At the moment they are helping me pay for college and I don't know. I'm so nervous. My whole family is like this too. Any one else experience the same thing?