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stage one

dialation

Begins when cervix dilates between 4 cm - 7 cm

stage two

pushing

stage three

expulsion

Fetus moves through the birth canal

Placenta leaves the motherʼs body

Contractions every 10 to 15 min., then every 5 min., then every 2 min.

Cervix dilates to 10 cm

Ends with birth of the fetus

Cervix begins to dilate and efface

Cervix begins to dilate and efface

Placenta produces oxytocin hormone, causing uterus to contract

Contractions every 1-1/2 to 2 minutes