OP, lots of different opinions on here. All valid.
I had my last child in my early 40's and my husband was late 40's and all was well.
Very busy, very full on on and at times and absolutely exhausting.
They are all healthy and well so we consider ourselves hugely blessed.
However, there is the other end of parenting...... which is now being into your late 50's with teens etc.
Huge amount of running around, sports, school drops, college, emotional support, late night collections...
It is very full on, at this time of our lives.
We love them and want the best for them and just get on with it.
Full on to be approaching 60, with teens in the house and still have university for a couple yet.
My point is it's a very long road, that does fly, but people often get caught up about the baby stage and how hard that is......when in reality, all my friends were correct....the baby/toddler stage is actually not that difficult compared with what some parents face with teens etc.
Good luck with your decision 