need some advice

So I work in fast food and I'm 21 weeks. My feet hurt all the time. Anyway one of the big bosses came in and said that I want to go to school for they do tuition reimbursement, and as soon as I start the classes to call him and he would give me a job within the company for what I want to go to school for. Well our next semester doesn't start until August and I'm due in September. Should I start school right now or wait until the spring semester after baby is here? My managers wife went to school full time while she was pregnant with twins and didn't miss out on any schooling that's why I am wondering.