Going to attend college pregnant do I have to avoid any classes?

I have been planning on going back to school since january. I have filed for financial aid and am just trying to decide on the school. I found out in May that I am pregnant and due in January. I still plan on attending school full time for the fall semester and possibly part time for spring and summer. My main concern is the beginning chemistry course that I need to take in order to go on to the more advanced science courses for my major. Could I still participate in chem lab pregnant or is it too dangerous?