Prenatal Care What Does a Baby Girl Look Like on Ultrasound? By Robin Elise Weiss, PhD, MPH Robin Elise Weiss, PhD, MPH LinkedIn Twitter Robin Elise Weiss, PhD, MPH is a professor, author, childbirth and postpartum educator, certified doula, and lactation counselor. Learn about our editorial process Updated on June 14, 2021 Medically reviewed by Brian Levine, MD, MS, FACOG Medically reviewed by Brian Levine, MD, MS, FACOG on September 24, 2019 Brian Levine, MD, MS, is board-certified in obstetrics and gynecology as well as in reproductive endocrinology and infertility. Learn about our Medical Review Board Print The girl ultrasound gallery is designed to show you what a baby girl looks like on ultrasound photos from various weeks of pregnancy. You'll notice that what you see varies a lot by the number of weeks of gestation. Each week in pregnancy can look slightly different. This can be due to the baby's development, the weight of the mother, the position of the baby, and the skill of the ultrasound technician, for example. There are a lot of theories about what the ultrasound technician is looking for in a girl ultrasound. Is it true that three lines in ultrasound means girl? This is often called the "hamburger sign." Some technicians look for two lines. And yet others go by the old adage, no penis means it's a girl. Stay Calm Mom: Episode 4 Watch all episodes of our Stay Calm Mom video series and follow along as our host Tiffany Small talks to a diverse group of women and top doctors to get real answers to the biggest pregnancy questions. 6:59 Your Baby's Ultrasound: What to Expect 1 14-Week Girl Ultrasound Photo © T. Morrison 2 16-Week Girl Ultrasound 16 Weeks Ultrasound Photo - It's a girl!. Photo © S. Smith 3 16-Week Girl Ultrasound 4 17-Week Girl Ultrasound Photo © Clare 5 17-Week Girl Ultrasound Photo © E. Halcrow 6 17-Week Girl Ultrasound Photo © A. Merritt 7 17-Week Girl Ultrasound 8 18-Week Girl Ultrasound Photo © T. Morrison 9 18-Week Girl Ultrasound Photo © M. Horn 10 19-Week Girl Ultrasound Photo © K. Harrell 11 19-Week Girl Ultrasound 12 20-Week Girl Ultrasound Photo © A. Castillo 13 20-Week Girl Ultrasound Photo © J. Snelson 14 20-Week Girl Ultrasound Photo © K. Harrell 15 20-Week Girl Ultrasound Photo © K. Harrell 16 20-Week Girl Ultrasound 20 Week Ultrasound Photo - It's a girl!. Photo © C. Robinson 17 20-Week Girl Ultrasound 18 20-Week Girl Ultrasound 19 20-Week Girl Ultrasound 20 20-Week Girl Ultrasound Photo © Kymberli 21 21-Week Girl Ultrasound 22 22-Week Girl Ultrasound Photo © A. Varney 23 23-Week Girl Ultrasound 24 23-Week Girl Ultrasound Photo © J. Ashworth 25 25-Week Girl Ultrasound Photo © S. Morrsion 26 26-Week Girl Ultrasound Photo © R. Brinkley 27 27-Week Girl Ultrasound Photo © L. Gopher 28 35-Week Girl Ultrasound Photo © RE Weiss 29 36-Week Girl Ultrasound Photo © P. Ringo 30 38-Week Girl Ultrasound Photo © P. Ringo Your Pregnancy Week by Week Was this page helpful? Thanks for your feedback! Get diet and wellness tips to help your kids stay healthy and happy. Sign Up You're in! Thank you, {{form.email}}, for signing up. There was an error. Please try again. What are your concerns? Other Inaccurate Hard to Understand Submit