Dating your pregnancy after miscarriage


03-Sep-2017 12:23

In an abdominal ultrasound, the woman will be asked to come to the scan with a full bladder, because this positions the uterus in a way that makes it easier to obtain measurements.

The doctor or technician then spreads a gel over the lower abdomen and uses a transceiver to take measurements from a number of angles.

If an ultrasound in the second or third trimester shows that a baby has no heartbeat, this is considered conclusive for diagnosing a missed miscarriage or impending stillbirth.

A decrease in your basal body temperature (BBT) can be a sign of an impending or completed miscarriage or an otherwise nonviable early pregnancy.

When a woman is having miscarriage symptoms, a doctor may order one or more ultrasounds to determine the viability of the pregnancy.

In the first trimester, doctors usually use a transvaginal rather than abdominal ultrasound to gather information about the pregnancy.

(These situations would be called a blighted ovum or missed miscarriage, respectively.) The information in this walkthrough is specific to ultrasounds done in early pregnancy, particularly early in the first trimester, prior seven weeks of pregnancy.

As the pregnancy progresses, ultrasound becomes more and more accurate for determining the viability of a pregnancy.

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Many women have shorter or longer cycles and do not ovulate on the 14th day -- and this could affect what an ultrasound should show in the development of the pregnancy.Researchers have mapped out the expected measurements for specific points in early pregnancy, so an early ultrasound scan can give a doctor some important information.