How do I tell my overly religious/protective parents that I'm pregnant though I'm unmarried, even though I'm 24?

As many of you are aware, there has always been tension and fear between my parents and I, especially concerning my boyfriend (who they absolutely hate) and myself. We recently discovered that my boyfriend and I are expecting a boy in June. My best friends and I have been doing a lot of discussion about it and think I should tell my parents because even though my boyfriend and I want to get our own place together, we don’t make enough money to support ourselves and a child given the high cost of rent in our area. He doesn’t want me to do so because he is afraid that they’ll accuse him of rape and other things and force me to gt rid of the baby without his or my consent (though I have assured him that this is highly ILLEGAL). I know they won’t allow him to be a part of the baby’s life because they have threatened before that if he comes near them, me, or their home, they are calling the police and getting a restraining order against him.
I myself am adopted and was raised without a father, and I can’t imagine giving my child up either when I know I can take care of him and I know the statistics relating to adoption, foster homes, etc. or having him go through life without his father just because my mom and aunt are unrealistically psychotic.

Yes, I know I am 24 and an adult and it is ridiculous to be afraid to tell my parents this, but I know how poorly they will react, as my mom once before said that if I get pregnant I can’t keep the child (which is bull. its my choice, not theirs).
No one in my family got mad at my 18 year old nephew when he got his girlfriend pregnant this year but I’m afraid I will be held to a different standard and be called all kinds of names and told I’m going to hell for this.

How do I do this without them freaking out and kicking me out or calling the cops against him or worse?