What should Michelle do when she feels the urge to push at 9 centimeters dilation with the presenting part at -1 station?

At 9 centimeters dilation, the cervix is not yet fully open, and the presenting part of the fetus is at -1 station, which indicates that it is still above the ischial spines and therefore not yet in the optimal position for delivery. In this situation, it is important for Michelle to not push. Premature pushing can lead to complications, including cervical swelling or tearing, and may hinder the progress of labor.

Not pushing at this time allows the cervix to fully dilate to 10 centimeters, ensuring that there is adequate time for physiological changes to occur that support a safe and effective delivery. Additionally, it can help maintain energy and reduce the risk of maternal exhaustion, which may occur if she pushes too early.

In contrast, pushing before proper dilation can lead to potential harm, both to the mother and the baby. Therefore, waiting until complete dilation and optimal positioning allows for a more safe and controlled environment for childbirth.