Which of the following is a feature of the first stage of birth? January 1, 2023 by admin contractions expelling the baby’s head from the mother’s body contractions causing the cervix to stretch and dilate to about 4 inches contractions expelling the umbilical cord from the uterus contractions detaching and expelling the placenta and other membranes See Answer contractions causing the cervix to stretch and dilate to about 4 inches