An ultrasound is a diagnostic image that sends high-frequency sound waves inside the body. When the waves hit a targeted area, they'll return as an echo that translates as electrical signals to project a black and white image on a screen. Ultrasounds help OBGYNs view a baby inside the womb to learn more about its well-being and development. Here’s what to expect during your initial appointment.

When to Get Your First Ultrasound

The first ultrasound usually happens during the first trimester or the initial three months of pregnancy. The appointment occurs between the seventh and eighth week, following the last day of the menstrual cycle. The purpose of this ultrasound is to confirm the pregnancy using one of two methods.

A transvaginal probe allows the technician to view the fetus from the cervix, and it’s usually necessary during the early stages of pregnancy. On the other hand, a transabdominal ultrasound relies on a handheld device that glides across the belly to emit the waves and capture their return.

What the Doctor Looks for During the Ultrasound

The initial ultrasound usually happens during the first prenatal visit with your OBGYN. The doctor will listen to the baby’s heartbeat to confirm the pregnancy.

They'll read any following ultrasounds to estimate your baby's due date and track the pregnancy milestones. The images will also uncover unique conditions, like multiple fetuses or an ectopic pregnancy, where the fetus attaches to the fallopian tube instead of the uterus.

If you or a loved one need prenatal care, head to TTND & D OBGYN in Honolulu, HI. These health professionals offer various services to support and care for women, including pregnancy ultrasounds, advice about carrying, and support during delivery. Call (808) 599-4200 to learn more about their personalized services or schedule an appointment.