School/Work/Pregnant ?

Is anyone else working full time & going to school full time & making it work. I really need some encouragement or advise. I will be 11 weeks on Saturday. My school semester ends in December so I don't have long to go, but I work a very physically demanding job at night. I have one off day which is not really an off day because once I get off in the morning I sleep until 12. Classes start a 2pm & I have class until 9pm which just leaves enough time for me to go home and sleep. I am falling behind in my school work since they changed my off days from two to one. I'm feeling as though I cannot continue doing both. Instead of being in class today I am in bed feeling like a big bag of throw up, tired, and my body is aching from work last night. What should I do ?