Always stick to the budget set by your husband.
He is in charge if the family finances and he has the responsibility of making sure all the bills are paid and that you have money saved for unexpected expenses. Just because you have a credit card does not mean you can go out shopping and max out he card.
Don’t make unnecessary purchases without first consulting your husband, even if you are the biggest wage earner in the family.
Be grateful that he has taken the weight of the finacial burden off your shoulders.