Unless your dr tells you not to, you are ok to work:)
Women can work while pregnant. I had nausea during my first trimester, high blood pressure due to pregnancy, and various things happen during pregnancy and still worked the entire time. needing income allows one to get over the discomforts of pregnancy or at least it did me. It's generally not dangerous for the baby unless you have some kind of serious complication and pregnancy is not fragile otherwise. You just don't feel great. But you have to do what you have to do to get the bills paid. I also liked it because then I wasn't as focused on every ache and pain of pregnancy and time went quickly. That's just my opinion on it though. good luck