I want a baby and he gives me excuses

Long story short Me (F26) and my boyfriend (M28) have 1 year old baby. In past we always talked about kids and family and both of us wanted 2 kids max 3. That didn’t change even after our little one was born, when he was born both of us said we will start trying when baby starts walking, which he did before his 1st birthday ( he was born in November), we decided to try again after new years. Which we did but now for past 2 days he has been giving me excuses as to why he doesn’t want a baby such as, baby items are expensive , we don’t have a big car, we don’t have a house. And just keeps repeating them. They all are stupid excuses because all the baby items we kept them and they all are neutral, we have 2 double bedroom flat (lots of space) and never had an issue about it, car? Don’t need a bigger car as the one we have is 5 seater? When i communicated that im upset over this, he told me im over reacting. I feel like if he keeps giving me excuses im going to resent him over it. And at this moment im not sure if we just need to part our ways or what. So am i over reacting? Anyone else been in the same situation?

Edit: He was the one to initiate conversation about trying again and the idea of the timeline of it. He wasn’t pushed to do anything he didn’t want to do. Finance isn’t the issue either. We are not married and we will not get married in future either for personal reasons. AND WE DID TRY THIS MONTH (which we know doesn’t happen straight away) I wouldn’t be upset if he was upfront and honest and just say he isn’t ready and changed his mind instead of making excuses.

Little update: Thank you to everyone, just like some people suggested we sat down and talked. Honestly never expected with what came to light and im still in shock. We started talking which ended in argument and he came clean and told me he has been seeing someone else for a week. I honestly question everything and how much is the truth of what he told me. Im thinking and trying to think of any signs and nothing comes to mind. So many questions and no answers and i don’t think i even want to know. I feel so disgusted, i will never understand how can you cheat and then come home and act like everything is good. Thank you for reading my rant, for understanding and not judging.