My Dad Walked in on me.....?

Having with my boyfriend. It was awful, but let me first state that he is my boyfriend of over a year, we have spent every day together and we just now started. I am 17 in about 5 months i will be 18, he is 18. He is a fantastic guy, never looks at girls, never takes advantage of me , writes me poems and notes everyday, a total romantic. We were responsible, i got on Birth control months ahead, and he uses condoms and doesn't even ...you know... inside of me. Well my dad walks in[[i was clothed if that makes it a little less embarrising]] and goes crazy. Insane, he yells and kicks my boyfriend out of the house. Yells at us for hours. now my boyfriend is only allowed an hour visitation pretty much every saturday [[the first two weeks though, no seeing each other at all]] . And when he comes over we are not allowed to get snuggly and my parents are sitting right there. Now I can see his point. However, it has been two months , and my parents still yell at me every night to me. It was embarrising enough. And then my Dad tells my sister and her boyfriend, I think that was disrespectful on his part. He told me he wouldn't tell anyone other then my bf parents and my mom. Now my parents are telling me if i try to see him, if we even happen to be at the same place together without permission, he gets a restraining order agianst him. And now for this part, my sister got preggo at 18, by some random dude, and did she get punished? no. My Brother met some girl states away, moved out there about a year later she was pregnant, my other sister lives in this house just a year older than me and is allowed to go spend the night at her bfs house and come here alone...now what do you think they are doing. and finally my mom got pregnant when she was 17...my dad was 25, So why are the acting like i was the only one that did this. I am tired of it, they are making me feel awful, at least i was responisble enough to wait for a guy who i loved, who loved me, who i was in a stable relationship with, got on birth control methods and everything. I understand being grounded for two weeks, you know. But when they put me down pratically saying what a i was in front of anyone, it's really getting to me. And now they are pissing off my BF parents because what they are saying to him. And they can say what they want to me, but when it comes to him? no. and now my bf is starting to hate my parents because they somehow make me cry everyday. it's pushing me away from them. When i am 18 i am moving in with my boyfriend now, because it just isn't home here, all they do is call me a tramp and all. I just need help coping with it and some feedback