School & last few weeks of pregnancy.

Yes, I'm a teen. Yes, I will graduate and continue my schooling. Yes, I know, I did this to myself. I just don't understand how my school can use that excuse to make it seem fair to keep me here for the last week and a half, 2 weeks of my pregnancy, KNOWING how uncomfortable, miserable, and in pain I am. I can do my work online while I am out, so that is not a problem. I'm a very motivated, reliable student that has A's & B's so I'd get it done with no problem. They know this, however, they will not allow me to leave or get half days until I pop this baby out. So basically I'm walking up and down 6 flights of stairs inbetween classes every single day until my daughter decides she wants to be born. The sick part is, my school has an elevator and they won't allow me to use it. Even with a note from my doctor explaining my situation. I'm not even exaggerating. Ugh. Can't I just get a break?!