K.M.
My sister is 46 and just had her 4th child. Both of younger ones were born after she was 41. Obviously there are a lot of reasons to not have a child at this age, but if you are healthy there is no reason to not. You daughter deserves a sibling, especially having older parents. She'll want someone around when you can no longer be there for her. Please don't think I'm calling you old though. I am about to be 38. You're not old at all. :) Good luck having another baby!!