When to stop having kids

I have a one year old and almost four year old- both are boys. It’s wild in our house and some days are just extremely hard with two toddlers. I see my friends and people I know having more kids and it makes me think maybe I want another one too? Then something will happen with my four year old and I think “nope that’s my answer.” I start thinking about other factors like my time will be tied up even more, the financial responsibility and so much more. I want this feeling of being done and it’s just not happening but I also really don’t want to go through another pregnancy. Anyone else felt this?