Think about your request. You are asking him to leave work for two weeks without pay (I assume he will not be paid because he said he cannot afford to take two weeks off from work). Also, he has coworkers and a boss who depend on him to run the business where he works. So, the financial hardship and short notice for him to leave work is really asking a bit much.
Since you know exactly when your C-section is scheduled, perhaps you can call your family and friends and ask them to check up on you and give you help when they are available. Since you have almost a week to prepare, why not pre-make and freeze yourself some meals that can be easily microwaved and do your grocery shopping in advance. Do as much prep work as you can to make your recovery time easier on yourself.
Perhaps your husband can come home for lunch to help you or maybe leave for work a little later or come home a little sooner than usual. Determine when you will need some help and have your family and friends pick a slot of time to drop by to help you. Planning is key to make your recovery easier on yourself.
Perhaps if you expected your husband to do without pay for two weeks, you could ask him if you can hire a home health care aide into your home once a day, for an hour, to help bathe you and the baby. That way, he will not lose a full two weeks of pay.
Please do not think that you and the baby are not "worth" his time or compare his desire to maintain income as a choice that you and the baby are not important to him. Please see that he is concerned about supporting his new family. It is pretty scary to have a newborn to be financially responsible for and he is just trying to do the right thing for the family, financially speaking.