I want a baby 😔

Okay so I'm 22 and me and my SO have been together for 5 years (he's 23 btw) I really want to start trying to convince since I have pcos and I don't know how long it will take for me to get a bfp, he keeps saying he's not ready for a baby and I mean I'm not going to keep pressuring him but I reaaaally want to be pregnant 😔 are we too young? Or can you girls give me any advice?