He wants to adopt

Even though we can have children! He doesn’t want my body to change or me to go through the trauma of birth as he says. I am open to adoption but I think I would want my own baby. I don’t think it’s ever the same, although you can love them a lot too. He thinks the world has too many people already and we should help a child in need. I see this and I think it’s a great goal, but I am scared I’ll resent him later in life for pushing this on me. I don’t know what to do.