Me and DH have a DS who is 11 months old. DH has always said he'd only want one child and sometimes I feel the same and sometimes I wonder what it would be like to have another. Deep down I know DH isn't closed off to having a second baby though, I can tell when we talk about it that he sometimes thinks about it himself. I think his previous attitude is changing now that DS is out the difficult baby phase and is now turning into a wonderful little boy 
However, if we were to have a 2nd I absolutely wouldn't want one for many years to come, partly because I read threads about families with young babies and toddlers and how difficult it is and I think, "You must be mad!"
It just sounds so exhausting.
If DH and I were to leave it another 5 years we'd be 36 and 37 (which DH said is too old be to starting all over again) but I honestly can't bear the thought of having to cope with a baby and toddler at the same time.
Did other people feel like this?
DS has been very draining with BF and sleep issues and the thought of trying to deal with those issues all over again with a toddler on the scene does not appeal 