Contractions before birth
If the muscles of the uterus tense up, this is called contraction. Contractions are often only associated with the birth process. There are, however, some subgroups (low labor pains, preabortion, postpartum contractions, etc.) that can occur in the last trimester of pregnancy or even earlier. These subgroups differ in strength, frequency and duration. Contractions during … Contractions before birth