What is a sign of a normal delivery during childbirth?

A sign of a normal delivery during childbirth is when the head of the baby is in the vaginal canal. This position indicates that the baby is in the vertex position, which is the ideal orientation for delivery. When the head is engaged and descending into the birth canal, it typically suggests that labor is progressing as expected. This is a critical moment in the birthing process, as the baby's head usually leads the exit from the mother's body, facilitating a smoother delivery.

In contrast, the other options present scenarios that are either abnormal or do not specifically indicate a normal delivery. For example, the feet coming out first describe a breech presentation, which is not the typical or safest position for delivery and can require special medical intervention. Blood and stomach pain can signify complications or distress during childbirth, which are not considered signs of a normal delivery. Lastly, excessive crying from the baby may be a typical response to birth but is not a direct sign of the delivery process itself or indicative of its normalcy. Therefore, the positioning of the baby's head in the vaginal canal is a clear and essential indicator of a normal delivery.