Nausea can be a sign of cervical dilation, which is part of labor. When this dilation happens rapidly, you may feel nauseated.
You can also feel nauseous (and even vomit) near the final stage of labor when your baby is about to be delivered.
Keep in mind that nausea when you’re in labor is different from any morning sickness you may have experienced in the beginning of pregnancy. The nausea you might feel during labor typically goes away after delivery, unless you have other pregnancy complications like preeclampsia. Nausea that doesn’t stop right away is sometimes a sign of something more serious, especially when associated with high blood pressure.
