You have more than one problem here.
You want another child and he doesn't. You think he isn't listening to you but he is likely thinking the same when he says no. All you can do is make a choice about what you want more, him or another baby. You can't have both if he doesn't want one can you, so do you stay with him or do you leave to have another by yourself or in another relationship?
Then you have the big problem of contraception. You want another baby obviously but until you've made a choice about what you're going to do about that do you want to be on the pill? Try not to think about babies when thinking about that. Just think about if you are ok with taking the pill when he isn't using any contraception or getting a vasectomy himself. Because if you don't want to take the pill but you do make the choice to stay with him and not have more children how are you going to do that? It's a big problem. Because if you don't want to take contraception and he doesn't want to use condoms or get a vasectomy then all the choice you have left is abstain or have unprotected sex isn't it? You already know you're ok with having a baby so you are ok with unprotected sex. But he doesn't want one so he needs to pick what he wants to do.
So, after you know if you're staying and not having a child (because if you're leaving you don't need to worry about contraception in this relationship) you need to talk to him and you both need to listen. Because if you don't want to take the pill what contraception are you going to agree on?
Because you need to agree on something. So if he doesn't want a vasectomy or to use condoms (and another thing you both need to think about is the failure rate of whatever you use, and if you're both ok with it) and you don't want to take any birth control or get sterilised (and you both have the right to not want any of them, and you both don't have the right to make eachother take one) then you need to agree to abstain from things that will make a baby or that you will just have unprotected sex and both agree that if/when you get pregnant you'll be having a baby (because you don't want a termination, so that isn't something he can tell you to have, anymore than you can tell him to have something he doesn't want done to his body). Then if you still can't agree your relationship is really over anyway because you need to be able to agree on these things in a relationship.
But you need to know what you want OP.
You need to think about if another baby is a deal breaker. Then if yes, you tell him and you leave. But if no you need to talk to him about contraception.
When you talk to him about contraception he needs to know you now won't be asking about another baby and will be staying in the relationship. Then that you now need to talk about contraception.
He might not want to talk about it but he'll either have to or the relationship will be called into question again.
You need to know what you want OP. No one here can tell you, and when you know what you want start talking to him and if he won't listen you know you can't make him.
What you don't want is both of you not being on contraception and having some sort of competition over if he'll break first and go for it unprotected or if you'll both just abstain and hate eachother. You're both adults.
So if you can't agree one of you needs to be the bigger person and understand the relationship is over anyway. Most importantly of all you have a child to think about, and what happens with their parents is important, so you agree together or you don't agree and do what you need to to stop your child living in the middle of your arguments.