What to do?

What to do or how to feel when your boyfriend doesn't want no more kids but you do? When we first started talking he said he wanted another child with someone he knew he was going to be with and I felt the same. But we had to wait like 3 to five years, then he would say if it happened it happened. Then it all changed when he found out he had a baby girl with his ex and now he doesn't want another baby. He said we could adopt but I don't want to because there's nothing like feeling your own child growing inside of you and meeting them after their born. Idk maybe I'll get over it.