This is more of a 'what would you do' but I suppose I am posting here for trafficking
Have name changed as the figures I give will out me.
First DC is due soonish and I'm thinking, after maternity leave, that I should give up my job because financially, it's not worth it and I want to SAH with DC as it'll have more benefits to it?
Myself and DH are both low earners. I earn just under £20K, he earns £21K.
We aren't entitled to anything with us both working, but, somehow top ups would make us better off if one of us didn't work? 
I'm quite a poorly person, I have an autoimmunity disease so I have a feeling working just to pay childcare (if it even ends up covering that?) and missing out in DC's first for it will send me into despair.
My concern is... The whole career break thing. I would go back to work when DC is a few/3 years old but I'm not sure how it'd impact my job prospects. I work as a Medical Secretary in the NHS.
I would say work part time, but I'm not sure we'd get any help there either and it's a lot of huge effort just to fork out to pay for childcare.
What would you do?
I'm really worried 