I work full time and didn’t have children until I could afford that on my own, if needed.
You need to work out a plan. Even if you don’t ever choose to leave, you should work out how you could.
You wouldn’t be the first woman to stay for several years until it was financially easier. For example, waiting until youngest started school. But even then, you need a plan. No short term, “my salary would only cover nursery” stuff. Whilst you’re a couple, nursery is a household expense. So you might break even on financials, but have a far better chance of promotion in a year’s time. You can use the time to build savings - him thinking it’s a safety net, you knowing it’s your future rental deposit.
If you stay temporarily you need both a financial plan, and a daily living plan. Refuse to do what you refuse. E.g. it’s easier to not do his washing, than to eat having cooked for 1 in front of him. You can of course plan your time to do a children’s tea separately, and tell him you’re on a health kick of eating main meal in day 😉
You may not be able to force him to parent. Sure you can say you’re having the Saturday lie in, but if he refuses to get up and a full nappied child knocks on your door, you’re fucked. When a child’s welfare or happiness is involved, he’s got you over a barrel and he knows it.
But that shit is more bearable if you have a plan - even if you’re years away from leaving.