What should I do about my job??

Amber
I am a preschool teacher at a daycare, and I work with ages 5 and under. Most of the day I work with 6 one year olds by myself. This is a very physically demanding position, and mentally stressful as well. As is to be expected with toddlers in this setting, kids are constantly climbing on the little chairs and tables, falling over, biting each other, crying, requiring hourly diaper changes,and dumping toys all over the floor. I have worked in this industry for 7 years, and after I found out I was pregnant my passion and patience for this job fizzled. Also, I get no paid leave whatsoever, and since I work 30 hours a week now, I acquire no vacation time. I am due 2/29/16, but I am considering leaving my job at the beginning of the new year. One reason is due to the fact that my company allows NO requested time off or schedule changes during the month of January! This is when my Dr appoints will be more frequent, and I also have a lot to prep and birthing classes to take that won't work with my current schedule. I don't plan to go back to my job. Money will be tight with my SO income alone, but I plan to find a different job after baby Is born. However, here's my dilemma: I am receiving government assistance for health benefits, and I'm afraid if I voluntarily quit my job I could possibly lose my coverage?!? Idk what to do!!! Sorry long rant...its been driving me crazy!