Talking about kids super early?

Talking about kids happened so fast in our relationship. I have a 3 year old from a previous long term relationship that I left when I was 3 months pregnant. He has none. Up until meeting my boyfriend, that experience had ruined the idea of having future children with anyone. We had been seeing each other for not even a month when I traded in my car for a brand new one and I remember showing him pictures of my choices, which were all cars as it’s all I’ve ever owned and I had a decent commute to work. When he saw my choices he asked why I was getting another car, and I was confused on why he thought I shouldn’t get a car. He made a comment about how “what about when we have kids?” I dismissed it and told him I could fit two car seats in a car just fine.

Fast forward to about two months in I told him my BC implant was due to come out soon and I’d have to have another put in soon (I had started getting periods again) he told me that he didn’t want me to get another one put in because he want d kids before 3 years. When I asked if he wanted me to go on another type of BC he said whatever happened happened. We weren’t “trying” but definitely weren’t preventing and found out we were expecting before I even had a cycle off of BC. I cried when I told him and he was confused because we wanted this. We sadly lost the pregnancy a week later at about 4 months into our relationship. We started actively trying after that and I could see the disappointment whenever I told him AF came every month and he started to say maybe I can’t get you pregnant. Now 7 months after our loss, 11 months into our relationship, we are finally expecting again and I swear I’ve never seen him happier. I know he’s going to be the best dad and I can’t wait.