This educational content is not medical or diagnostic advice. Use of this site is subject to our terms of use and privacy policy. Registry Builder New. Ultrasound During Pregnancy. Medically Reviewed by Jennifer Wu, M. Medical Review Policy All What to Expect content that addresses health or safety is medically reviewed by a team of vetted health professionals. Hey, baby! Get ready for your first close-up — it's time for an ultrasound. Back to Top. In This Article. What is an ultrasound?
Who an ultrasound during pregnancy is for All pregnant women should receive at least one ultrasound during pregnancy. When an ultrasound during pregnancy is done The American College of Obstetricians and Gynecologists ACOG says that women should get at least one sonogram in the second trimester , between weeks 18 and 22 of pregnancy.
Continue Reading Below. Read This Next. Amniocentesis Test. Hearing a Fetal Heartbeat. View Sources. Johns Hopkins Medicine, Biophysical Profile , Mayo Clinic, Amniocentesis , November Mayo Clinic, Nuchal Translucency Measure , American Heart Association, Fetal Echocardiography , Pregnancy Groups.
Jump to Your Week of Pregnancy. Pregnancy Week. Signs of Labor. Went in a few days later to have a scan with the ultrasound tech, and baby was there and healthy measuring 8w3d. Stay hopeful because maybe it was just an issue with the person administering the scan. Sending positive vibes your way! We strive to provide you with a high quality community experience.
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Violation Reported. Your Guide to the First Trimester of Pregnancy. Your Guide to the Second Trimester of Pregnancy. In Miscarriage Support 2 doses of Misoprostol only light bleeding. I'm so confused. The fetus is about the size of an ink-pen dot, but technicians can magnify the image using computer software.
Most of what you can see is fluid inside the gestational sac. Amniotic fluid -- the fluid your baby lives in throughout your pregnancy -- naturally replaces the gestational sac fluid during the next few weeks.
An ultrasound technician should be able to locate a small white circle inside the gestational sac, known as the yolk sac, that provides nutrients to your baby until the placenta develops. Next to the yolk sac is the extremely tiny embryo, typically marked with little plus signs on the ultrasound monitor, according to Parents.
Technicians measure the embryo to determine your likely due date. Around week six, the fetus starts to look much more like a baby. It has a tucked C-shape that curves inward and has a recognizable head and umbilical cord. You can also see small stumps where the arms and legs will continue to grow and develop. The ultrasound technician can also take pictures of the neural tube -- the beginning of brain development -- and the spinal cord.
At this stage, blood is pumping through the baby's heart.
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