will you consider hire a maid?
ask your hudband pay for it.
then you are free after work, no more house work waiting for you,
baby can have good meal which you order the maid to cook.
think abt it.
Support u. add oil.
if i were u, i will not think divorce first.
try to employ a domestic helper (part time or bun bun or yun yun)
i'm sure the house is more tidy and clean. have dinner everynight. feed your son on time, everything is easier.
of course, u have balance the money give to ur mother and make an agreement.
i think your husband feels unhappy too because he may feel sad or not satisfied by his job and when he come home. he also feel sad about the family is quite heavy.(the workload , the living environment, son's situation)
It shows that he also want to improve the situation but the wrong way.
for the worst case, divorce(it's not the best solution). don't worry, children under 18 are usually(nearly 100%) given to live with mother. Because mother's love is far greater important than father's under the law. for the financial problem, the father has to give the living expenditure to another half after divorce. so money is not the most critical point.
but for me, i will choice go to work and hire a domestic helper.
look forward ur good news and may God bless u..AMEN