Thick white discharge during pregnancy can indeed be a sign that you are losing your mucus plug, which is a normal part of the pre-labor process. The mucus plug acts as a protective barrier for the cervix during pregnancy, but as your body prepares for labor, it may start to dislodge and come out in the form of thick white or clear discharge. However, it's important to note that losing the mucus plug does not necessarily mean that labor will begin immediately. It could still be days or even weeks before contractions start.
The other symptoms you mentioned - slight back pains, pains in the front, an active stomach, and reduced appetite due to nausea - can also be associated with the approach of labor. These discomforts are often caused by hormonal changes and the pressure exerted on your body as your baby gets ready to make their grand entrance into the world.
If you're concerned about any of these symptoms or if they become more intense or frequent, it's always best to consult with your healthcare provider. They will be able to provide personalized advice based on your specific situation.
In summary, while thick white discharge at 37 weeks pregnant can indicate that you are losing your mucus plug and that labor may be approaching, it's important to remember that every pregnancy is different. Pay attention to any changes in your body and reach out to your healthcare provider if you have any concerns or questions.