School or work. This is the ultimatum issued by my husband.?

We are both at the masters level. We have three kids age 7-2. I currently work full time. My employer is one of the best in the county ie. good benefits/state employer. I want to attend school next semester. I don't want to not have income or benefits both are scarce where we live. I feel that I can take two cles and work. Cles are at night. My husband worries that he will end up picking up the "slack" and that the kids will suffer. He has a legitimate concern, but things do not pan out when he plans them particularly in finances. I have considered asking for reduced hours. Any suggestions, advice, or comraderie will be appreciated..