Need ADVICE!!!!!!!!

Hey everyone, I need some help. Me and my boyfriend have been been together for 4 months. We have been living together for month. Well my family knows that we are together and friends. He has not told anyone that we are together not even a couple. A few of his friends know I'm living there but they think it's only to help me out. I told him he needs to tell them that we are together but he wont. He says he wants to marry me and have a kid together but he won't tell anyone. He says his family ia super religious and if they find out we are living together they will fown on it. He says if I moved out then he would tell them. But I'm pregnant on top of it. I just don't know what to do. I feel like he's embarrassed by me and my kids. What do I need to do?