Insurance questions???

Ni

I am currently employed and pregnant- I have my current health insurance through my employer. After I give birth (due date in March) I don’t plan on working full time any longer and will lose my health insurance through my job. My husband is currently in school so our parents will be helping us out with money. How do I get Medicaid but mainly how do I apply for Medicaid for my baby?! Do I have to wait till he’s born or can I do it now? I have no idea and am completely clueless on this topic.