Am I a bad person?

So my boyfriend and I have been together a few years and he has some problems he's worked through during them. So he wants to take things slow as always because his view is we don't know what will happen years down the road etc. And I'm fine with it. We are still in a committed relationship and plan to remain together we just don't want the stress and pressure of a wedding or engagement, basically we aren't legally married but committed to be together until for whatever reason we part ways if we ever do. We have been fine and happy even after an accidental pregnancy last year that ended in miscarriage that took us both by complete surprise. Since then we learned I have PCOS and because of it my fertility is no where near where it should be at 20 years old. Basically after much testing and three doctors they all concluded in next year or two I should start trying because if I wait too long I may never be able to have children. So I have always wanted children and ik there's other options but I want to try to have at least one child in my life, I am very maternal and I've always wanted the experience of childbirth. I have always planned to adopt in my life but I also would be lying if I said I didn't want to try to carry a child too. So I told him all the information and gave him information from my doctors and the test results etc. And his response kind of killed me.

He said he wouldn't necessarily mind having a kid with me at some point but he doesn't know. It hurt me to hear those words. We've been together 3 going on 4 years and I've been patient through his problems, I've respected he doesn't want a wedding ceremony, I've taken things as slow as he needed. But now that I can't wait forever I can't be patient on this. I told him to take time to think because ik its big and he doesn't have to want kids but I feel shocked. This long and he can only say he doesn't think he would mind at some point? It's not like I haven't been clear in this relationship that I plan to have children. I know we are young but we are in our twenties, I think it's time to start thinking about the future like adults because we are adults. And he's been thinking for a month now and still says he isn't sure if he even wants to consider trying? I told him he needs to lemme know if he wants a future or if he wants what I do at some point and he tried to guilt me for handing an ultimatum? Like now I feel like an awful person but at same time why should I feel bad for wanting an answer different from idk or lets wait and see how it goes for the first time in years. I've been kind and patient and loving and know what I want. Is it so wrong I want him to step up and tell me if he wants this or not? I just feel so ready for a future he still doesn't even seem sure if he wants. Is it wrong to ask him to decide before too much longer if he wants to take the next steps or not?

With or without him I will be having to try for a baby and I'd rather do it with him but if he doesn't want the same things isn't our relationship doomed anyways? Should I prepare to move on? I'm just torn. I'm tired of his indecisive answers and finally tired of waiting for him to be ready for things. Does this make me a bad person?