Resentment is a relationship killer. If neither of you agree on what being a family with one full-time earner in it looks like, and how it works, then sooner or later one or both of you will end up being resentful of the other.
Firstly you and your husband need to agree on what is a fair and equitable division of household chores, in a relationship with one of you as a full time working parent and the other as a SAHM.
Then you need to agree on what happens to any remaining money after all bills are paid each month.
How much on food? Transport? School uniform? Clothes? Holidays and leisure time? Gifts? Christmas? Socialising? Ability to save for a rainy day?
Then you should both agree to be financially transparent. No bank accounts/ online accounts/ credit cards etc which are either hidden or inaccessible by one spouse. How the money is spent must be agreed upon, jointly, but in a marriage it is imperative that both parties know who has what account, what gets paid into where, and both parties should have equal access to view statements, nothing hidden or unavailable to either party. Refusing to do this is very controlling behaviour and completely non-negotiable for me.
You are a team, both should value the work contribution of the other, paid work or not, and both should be able to see where the money goes. Large withdrawals/ transactions should be mutually agreed upon, (eg holidays, buying a new sofa etc) day to day small amounts (a coffee, pint of milk etc) not so much, as long as one partner is not taking the mickey.
When the children are old enough (mutually agreed at what age this is) I would recommend going back to work, for your own security and future, hours to be agreed upon, domestic chores now shared equitably.
As far as domestic duties go, personally I see the parental time with the children as being the prioritised ‘domestic’ duties for someone working long hours full time. The working parent may feel marginalised and be desperate for time with their children after a full day at work. I would rather my husband/ children got to spend time together (eg bathtime/ bedtime ) whilst I washed up, than my husband spent time with the dishes or laundry when I had had the privilege of being with them all day because he was at work earning for us. I might get flamed here but personally I view cleaning, laundry, washing up etc as being part of the deal of being the SAH parent, there is time in the day for the SAH parent to do that as well as take care of the children. I was more concerned that my husband / children got to spend some time together Monday to Friday, so he tended to do some of the evening childcare.
Financially obviously the arrangement needs to work for the family, as in be affordable and doable, but I’d resent working full time then doing dishes/ laundry in the evening instead of spending time parenting, eg doing bathtime and/ or bedtime with my children, which still releases my SAH spouse to either relax or do other stuff.
You have to find what works for both of you, be honest with each other, be totally transparent financially, and secure your career going forward as you will end up out of touch with it and earning very little into the future.
Main red flags for me here are the lack of transparency with his personal account and credit card statements, plus his regarding the money as ‘his’ to be doled out as he pleases.
Have a big, honest talk, find all the possible resentment points, work out a fair and equitable plan with an agreed timeline for you getting back into work, and give each other access to all accounts and statements with the agreement that you always tell each other what you need and why you need it.
What works for one family won’t work for another, one person’s “unreasonable” isn’t another’s, just read the AIBU threads to see that. Agreement is the main thing, honest communication, openness and an agreed plan for the future.