You say you want to get pregnant. You don't say you and your boyfriend want to raise a child. There is a lot more to it than just getting pregnant and dressing up a cute little baby and showing him off at the mall. What happens when he's a 12-year-old who stinks and refuses to wash his greasy hair and is doing badly at school and hanging around with a drug-using group of so-called friends? Is that part of the stuff you're excited about too?
I agree 100% with Clysta - You not even in your own place yet!! Maybe start by crawling (moving in with BF) try and make that work... Im sure when time is right you'll have your bundle of joy for the right reasons!!
There is no 'fast' way to get pregnant, and if you're in your parents household and they expect you on a birth control it's extremely rude and disrespectful to go against their wishes and try to get pregnant. (considering they would be housing you and your child) If you want to be, move in with your boyfriend and then you can go off birth control and try.