Hi OP
I'm the same age as you OP
Time is not on your side that's a fact
It's a decision that only you with your DH can make together
I think you need to get on with TTC now as you don't have time to lose, and at the same time continue with the weight loss/healthy eating/gentle exercise etc
Weight loss will hopefully improve your back pain
But if you wait til you're in the 'perfect' situation health and body wise you'll never get on with TTC
In my head I wouldn't mind a third baby but then reality kicks in- I have two DC and returned to work earlier this year after mat leave for DC2 who recently turned 1
We don't have the room- currently live in rented 2 bed terrace- plus we're trying to save to try and eventually buy a place of our our own
Deep down I think I know that we're done with two
But in a parallel universe I wonder about going for number 3
I last conceived after after my 39th birthday and it had taken well over 12 months of TTC
Luckily both DC are healthy as far as we know and I do not know anyone who has a child with serious disabilities/is disabled, so I thank our lucky stars and reflect that our luck might run out with a 3rd
Having said that a close friend is also 41 and undergoing IVF for DC2, they have been TTC pretty much since the post natal check for DC1 who recently turned 1
Good luck with it all