What Imperial said. You would be in an incredibly vulnerable position if you did this.
You aren't married, he wants to be a SAHD. The main carer (which he would be if he's. SAHD) almost always gets residency. So if you split, which is highly likely as he doesn't sound like he's thinking about your feelings AT ALL, you would have to move out, leaving your child, would be awarded contact at set times and have to pay maintenance.
I feel that he is just seeing you as an incubator. Think about this for a minute. He doesn't say that he wants to start a family WITH you, that he wants to wait til you're ready. He wants a baby to make HIM motivated, so that HE can stay at home. This is all about him and he is pressuring you because it sounds like he's decided a baby will fix all his problems. I would even speculate, based on his comments about going out being selfish, that he wants to make you a little less independent. He did say that you would be "tied together for life". That's not what people normally say when discussing TTC!
I really don't like the sound of this man. Especially the pressuring. A huge percentage of relationships where abuse (emotional, financial so not just physical) is present see this abuse start during or following pregnancy. It's a time when you are indeed tied to and reliant on your partner. Labour can leave you physically unwell, recovering from major surgery. You need a partner you know you can rely on 100% to take care of you and not see it as a chance to begin controlling behaviour.
I also want you to consider the impact on you of having a baby. I've had two unplanned pregnancies. I wasn't sure I wanted either of them at first and at times during pregnancy found it very hard to accept the decision I'd made to continue those pregnancies. The thing that you don't realise however, is the impact the change to your body will have on you. Everyone told me that because I was young (twenties) that my body wouldn't change much, I'd "snap back" afterwards etc. It didn't and hasn't. My breasts are utterly ruined. They have zero fat in them, in a bra look normal but they honestly say down several inches when I take that bra off. I can't reverse that without surgery.
I'm not trying to scare you or be horrid (honest 
). What I'm trying to say is that when you are READY and really WANT a baby you won't care about things like that, well you will, but it's worth it. Going through a pregnancy you aren't sure you want and those things are amplified and incredibly hard to accept. I ended up with severe PND because I hadn't processed the reality of having a baby and couldn't cope. The PND meant I rarely left the house so certainly didn't make friends. And I wouldn't have been anywhere near well enough to go back to work, I struggled to shower daily and eat three meals I was so unwell.
It is not just "having a baby". It's life changing and irreversible and has so many impacts on so many aspects of your life. I love my children very much however if I had the choice to go back I would have them ten years later. I really really would. I adore them and they are my world but my god it's so bloody hard and my relationship with DP has been incredibly rocky since I got that first positive pregnancy test.
You don't want a baby yet. Don't do it. And tell this silly man you are with to fuck off. Honestly, pressuring you like that. He clearly hasn't thought for one second about how bloody stupid it is to persuade someone into a pregnancy they don't want. You are more likely to become isolated, more likely to develop PND, more likely to struggle with the impact on your body of carrying a child. He isn't thinking about you at all, it's all him, and that's not right.
Oh god I've just read this back and it's very long! Sorry OP, I think your OP has hit a raw nerve with me