SAHM (Allowance)

My partner makes a lot of income, a huge amount of income he’s financially stable and I’m pregnant and we just agreed that I’ll be a SAHM. He’s extremely happy and said if I ever want to work again that’s up to me but to not worry because we have that financial “freedom”. My question is how does this work for you SAHM? Do you get “weekly” allowances? What if you want to treat yourself? He said he’d be giving me money but we didn’t really talk in depth about it. So I’m curious, how does this work for you?