Fighting about having children together πŸ™πŸ’”

My SO has three kids from his previous relationship. He has a 6 year old, a 4 year old, and a 2 year old.

I have a son from a previous relationship who is 1.

Anyways now here we are together almost 8 months. Engaged now, talking about our future even more. One thing we were looking at was vehicles to transport all of us...but not a minivan eww lol. We were looking at new Chevrolet Suburbans which seat 7-8 people.

Well last night we were talking about numbers and he was like I cant wait to have babies with you. I'm like pardon? No way we're having babies any time soon. And he was like why not. I was like because having 4 kids is a lot of work. Having more will be a lot to handle. I feel like his two older ones are very independent. But I couldn't imagine having let's say three or four kids under the age of 3 ish.

I said I should go on birth control. And he lost it because he wants to have kids with me. I want to have kids with him. But twins run on both sides of the family too LOL. How would we transport so many small humans? Then we would have to move be cause currently we are in a 4 bedroom. What do you think we should do