I’m desperate for a 3rd. My dh says no. Problem is my first two almost killed me
So why put your life at risk and leave the children you already have motherless? Sorry, but I really, really don’t understand you 
You already have 2 happy children and a DH who doesn’t want another child. The extra child would be to indulge your needs, nobody else’s. I’d say be happy with your lot.
I agree with Vamoosh
Expensive teenagers x 3, GCSEs x 3, A levels x 3, UCAS applications x 3, University financial support x 3. This is what you would be signing up for, and obviously your husband has already considered this. Do you work or are you a SAHM at the moment?
DigOutThoseLemonHandWipes raises some valid points
My DH just says he is 44 and he doesn’t want to go through the early stages again, sleepless nights and wants to just enjoy life now as the children are growing up
I totally understand where he is coming from. Why don’t you want to let go? There is more to life than raising children
I agree with the popular mumsnet mantra that the one who doesn’t want another child trumps the one who does. Sorry.
another. Having a third could cause a whole heap of resentment, and could potentially lead to the end of your marriage.Would it be worth that, for you and your existing children?
This ^^. You already have two. Having a third child impacts the whole family not just you. Don’t be so selfish. “I want doesn’t get”. We can't always get what we want in life.