Am I dumb for not making him pay child support??

I’m gonna try & make this as short as possible. I’m 18 and 34 weeks pregnant. I currently live with my boyfriend and his mom. My boyfriend is leaving to join the Air Force in May. It’s been rough between us with all that’s happened but we’re still together and we want to be together. My family keeps pressuring me to file for child support from him but I’m living in his house and his mom is paying for everything for me and the baby so I don’t feel like that would be right of me. He also is going to be giving money to his mom for me and the baby every month because he wants to so I just really don’t want to file for child support since he’s doing everything he can to support us. My family tells me how dumb and immature I’m being and I honestly don’t know if I’m really being immature or not so I was looking to see what you guys thought? Would you file for child support in this situation?