Miscalculation of pregnancy dating
Measuring Development During Pregnancy Your outward sign of pregnancy is your growing abdomen, and everyone seems to have their own opinions about whether or not you’re measuring too large or too small.Perfect strangers might offer you opinions on how you are “showing” and what that means for you and your baby.Ultrasound (a diagnostic imaging technique that uses high-frequency sound waves and a computer to create images of blood vessels, tissues, and organs) is often used in early pregnancy to establish or confirm a due date.In a post-term pregnancy, testing may be done to check fetal well-being and identify problems.The vast majority of women deliver between 37 and 42 weeks of pregnancy.
There are also risks for the fetus and newborn in a post-term pregnancy, including stillbirth and newborn death.
Tests often include ultrasound, nonstress testing (how the fetal heart rate responds to fetal activity), and estimation of the amniotic fluid volume.
If tests determine that it is no longer healthy for the fetus to stay in the mother's uterus, labor may be induced, to deliver the baby.
Mothers are at increased risk for vaginal birth trauma due to a large baby.
Cesarean delivery is twice as likely in a post-term pregnancy because of the size of the baby.Should I Worry About Measuring Small During Pregnancy?