Dating an undocumented person

My parents are upset because I am dating and currently pregnant by my boyfriend who is no documented. He is in the process of trying to get a green card. He was brought here as kid by his mom who I've met. Both him, his mom, and his sister are undocumented. His mom told me why she came here. She is a victim of FGM and my boyfriend s dad and was gonna have his sister also mutilated and his mom left with the both of them. I didn't tell my parents his immigrant status. They found out on their own and they keep pushing me to abort the baby and that he's just using me. I don't want to cut my parents off but they're saying if they have this baby I'm cut off from the family and I need to make a choice.

@Mommaof4 I'm 28 and we have only been together 8 months but I was friends with his sister before me and him dated so I've known them 3 years and since I've known him he's been dying to LEAVE America. He hates it here and even his sister and mom don't like it here. They were just happy to be in a country were FGM is illegal. He had planned on moving to France and becoming a citizen there and is only getting a green card now to stay with me. My parents also know why his mom came here and there story. They're just extremely against immigrants in general which is why I never said his status. They also find it offensive that he's not legal yet hates things about America. When he found out I had to spend 8k on a root canal WITH dental insurance he said "Are you kidding me?!" And my mom said "You have no room to judge when you had to leave your country to keep your sisters clit from getting cut off." He wasn't even trying to be disrespectful. He just thought that much for a root canal with dental insurance was ridiculous and didn't understand the point of dental insurance