need advice

My SO wants me to get an abortion but I am already 16 weeks! I know it sounds so crazy and you guys are going to ask why but he just says we're young and he really doesn't want a kid right now and i understand that but I feel so forced to get one even though I really don't want to. I try to explain to him that I'm not getting one because I simply don't want one especially at this stage of the pregnancy, he tells me that I'm trapping him and that we won't last and he doesn't wanna coparent in the future. He tells me to get an abortion and we will plan and try for one in a few years.. :( it's so heartbreaking what are you guys thoughts on this?