16 pregnant... My boyfrineds 24 though

Ashton
I'm 16, my boyfriend is 24 and I just found out that I'm pregnant. I'm not scarred of telling him. He and I both want kids. But I am terrified to tell my mother and her husband. They hate him! And don't even know we are dating much less pregnant. Any one have any advice on this? I know that they won't let me be with him but I really want him to be there with me...