Hi @I-can
I will cautiously add some thoughts from a Husband / Dad to be point of view.
And please understand this is just my family experience not any intention to convey it is the only way. I hope you don't mind me commenting on a delicate mum decision.
It is encouraging to hear your husband is supportive, I as a husband like to think this makes a big difference.
A number of years ago our family was faced with the same scenario. For us, unplanned preg while wife was on a spiral towards a breakdown. My wife's Dr encouraged her not to continue with the pregnancy. This was not an uption for us. (Wife changed drs because of it).
While the first couple of years were hard for us, (my wife would have had a breakdown with or without a baby) and she found it hard to bond with bub, they now have a wonderful relationship. Our little man has blessed our family in more ways than words could express and my wife now would not have it any other way. Nor would I despite the challenges we faced.
We were in the fortunate position where both our mums were in a position to provide support and I could take bub to work with me.
As @tyme has mentioned there are some valuable community supports available.
Hope this is of some help and happy to answer any questions best I can