Understanding the Stages of Labor: A Guide for Expectant Mothers

4. Nesting

In the third trimester, it is not unusual for a woman to feel increasingly tired as her due date gets closer. In the days before labor starts, however, some expectant mothers experience a “nesting” instinct, an innate need to prepare for the baby’s arrival. A surge of energy triggers urges to cook, clean, and organize the household so that everything is ready for the new baby. One study found that nesting behaviors are similar to those in the animal kingdom, a means of controlling the physical environment and creating a safe space for its young.