DH and I have a Son who is five months old and a Son who is eighteen months old.
I wanted a big family before and DH was ok with it, but after much soul searching and questioning I don't want that anymore. He is happy about this.
We are considering having number 3, DH is one hundred percent on board with having a third and final child, but equally happy not having anymore! Financially, we'd make it work, space wise we would be OK and, whilst I always have a difficult time with the pregnancy/birth/recovery (especially with DC two) I would get over that. The thing that really holds me back is thinking about how much it would change the dynamics. DH is one of three boys, I am one of a brother/sister dynamic and I know I would have loved a third, husband was easy osey about being one of three, but at the same time the eldest out of him and his bros is the 'odd one out' definitely. That being said there are four years between each whereas ours would all be close together, deliberately.
I want to hear as many experiences as possible of people who were one of three to see how it affected you positively/negatively. Part of me decides to stick with two and be grateful and then gets heartbroken thinking of never having another one and not feeling quite done yet, then part of me decides to have a third and then I get guilty thinking I am being selfish and we'd be able to give the boys more if there were just the two of them. I guess part of it is that when I was pregnant with number two, I thought there'd be a bunch more and had no idea it could possibly be my last child, so didn't mentally 'prepare'.