According to the FDA, you’re prone to foodborne illnesses during pregnancy because your immune system is altered. This suppressed state of immunity is largely because your hormones are in flux. Your body’s priority is helping develop another human life.
Growing the baby is your body’s prime mission, and most of your energy goes toward that task. For this reason, pregnant women need to be careful about what they eat and how it’s prepared. In addition, your baby’s immune system is underdeveloped. If you get food poisoning, it can be dangerous for them.