Keeping your blood glucose levels under control helps ensure your baby won't have low blood glucose right after birth. You will be physically active when you're in labor, therefore you may not need much insulin. Hospital staff will check your blood glucose levels frequently. Some women take both insulin and glucose, as well as fluids, through an intravenous (IV) line during labor. Sending insulin and glucose directly into your bloodstream through a vein provides good control of blood glucose levels. If you are using an insulin pump, you might continue to use it throughout labor.