Tomorrow is my 20th birthday and I'm beyond stressed...I need to either find a summer job or decide…

Tomorrow is my 20th birthday and I'm beyond stressed...I need to either find a summer job or decide whether I'm going back to work at all...I kind of want a desk job or a small office job. Right now I'm a special education teaching assistant and I'm afraid that I will get hurt when I go back to work...all of my students are hitters and biters. Not to mention my bosses don't completely understand that I am pregnant and I have to miss work sometimes for all my doctors appointments...I mean I only have a heart doctor and an OB. I've voiced I might not come back and I get in trouble for it... I am not sure what to do...