I actually wrote a list of pros and cons and the thing that swung it was not being sure what I'd do with my spare time! [Laughs hollowly.]
DH was on the fence on the basis that he loved our life as it was but also knew he'd love any children we had.
So it was my choice and we chose to have children. I was very excited and definitely wanted them when we were TTC. Very lucky to conceive quickly each time.
I found DD1 (now 9 years old) a real struggle. High needs baby, didn't latch on for 3 weeks so expressed feeds, she didn't sleep much (still doesn't). Looking back I struggled to bond with her. Ensured she got everything she needed but i remember after a few months saying to DH that now I could understand the devastation of losing a child because you'd put so much effort and time into them.
Nothing about love.
Things were easier with DD2.
I reckon, honestly, if I could have changed my mind I would have done until they were about 5 & 2. Something changed. We were sleeping again better (DD2 didn't sleep through until she was 4), my back was recovering, was knackered for years after breastfeeding DD1. Now they are 9 and 6 I am delighted we did it. They are amazing. I still get a little resentful at the things I can't do but i know that time will fly and they'll be teenagers soon.
Finally, for what it's worth, I'm the full time breadwinner and DH works part time and does most of the wife work. This suits us both. When I do have days off I seem to spend all the time making food and washing up! I'm not sure how it would have coped if DH hadn't pulled his weight.
Also, it has brought me a great circle of friends, from toddler groups and school (small village life) which is another massive bonus.