M.,
I have 2 boys and they are 26 months apart (youngest is 4.5 months). My DH and I have decided that 2 is it. I was supposed to have my tubal at delivery of son #2, but I couldn't for medical reasons (pre-eclampsia). I called about 2 weeks later to make the appointment and I started to cry. I couldn't do it. I'm telling you this to let you know, I know how you feel wanting to have a third. A part of me wants to, also. I LOVE being pregnant and LOVE being a Mom even more. BUT...
My husband and I have talked about it at length and we can handle two with ease. We call it "(wo)man to man defense". One parent for each child. And, even if one of us is alone with the boys...two arms/hands. I can scoop them both up if needed. Not so easy with three.
In my heart, I wouldn't mind a third. But, in my head, I'm comfortable with two. Does that make sense.
At the same time, if you and your DH are in agreement and both want another baby. That's great and I say to go for it. We always manage to adapt. When I first started thinking about #2, I couldn't IMAGINE lugging them both to daycare, getting anything done around the house, shopping with two, etc. Believe it or not, we have adapted. I had my older son home with me at the end of maternity leave and I surprised myself with my ability to multi-task. I think that it would be the same with three...we'd figure it out.
Good luck and I hope you make a decision that makes you happy in every way.
T.
PS - The third could be a girl! YAY! Lol.