@LaVitesse2022 I was thinking about this again today.
I find having two children much more tiring than having one, and I think the reason for that is because when we only had one child, once he was big enough that my husband could look after him for a decent stretch of time (i.e. no longer breastfeeding every three hours) I got some time off. If he took DS to the supermarket, or if he was doing bedtime, I wasn't on child wrangling duty. Now with two children we are generally wrangling one each, so that time off doesn't happen. Even things like going out, or away for the weekend. When we had one child, it was no bother to go out for the evening and leave my husband to babysit, or if we wanted to go out together it was easier to get a grandparent to babysit, or if I wanted to go away for the weekend it was more doable because I was only leaving him with one child, not two. Now, with two children, it's a lot more hectic and neither of us really get much time to ourselves, let alone time to spend together as a couple. I've even noticed things like, I don't get round to shaving my legs very often these days, whereas when we only had one child I felt more able to spend time on self care.
There's a part of me that would love another little baby, but the sensible part of me knows that the little kid years are absolutely relentless, adding a third baby to the mix might well be more than we can handle, and I don't think my children would be getting the best version of me if we had another. Maybe we will regret it when they're older and the baby years are over forever. But I hope we will feel the opposite, that we'll really start to appreciate all the things we can do with our two close-in-age children that we wouldn't have been able to do so easily with three, and that we'll be enjoying those years so much that we'll be glad we didn't add a third baby to the mix.
In any case, I think have a second baby first, and hopefully once your second baby is a year old you'll be able to judge whether you can cope with a third, and whether you really want a third or it's just lingering broodiness.