William M. Gilbert MD


Fetal Ultrasound

Fetal ultrasound uses reflected sound waves to provide an image of the fetus and placenta. Fetal ultrasound is the safest way to obtain information about the fetus, such as its size, position, age, and condition. During a fetal ultrasound, a small handheld instrument called a transducer is used to direct sound waves…

Contraction Stress Test

A contraction stress test checks to see if your baby will stay healthy during contractions when you are in labor. This test includes external fetal heart monitoring . The test is done when you are 34 or more weeks pregnant. During a contraction, the blood and oxygen supply to your baby drops for a short time. This is…

Twin Pregnancy Types

Identical twins come from a single egg that has been fertilized by one sperm. For unknown reasons, the fertilized egg splits into two embryos during the first stage of development. In the mother’s womb (uterus), most identical twins share the same placenta. (They get oxygen and nutrients from the mother and get rid of…

Multiple Pregnancy

A multiple pregnancy is the presence of two or more fetuses growing in the uterus. A pregnancy of twins or more is considered high-risk because complications and premature birth are more common than in pregnancies of one fetus.

Breech Position and Breech Birth

What is breech position? During most of pregnancy, there is enough room in the uterus for the baby (fetus) to change position. By 36 weeks of pregnancy, most babies turn into a head-down position. This is the normal and safest fetal position for birth. But in about 4 out of 100 births, the baby doesn’t naturally turn…