What should you expect from your first trimester

20-week ultrasound boy?

Ultrasound Images of Your Growing Baby Boy
What to Look For
By Andrea Chisholm, MD
Andrea Chisholm, MD

Updated on June 14, 2021
Fact checked by Sean Blackburn

For most expectant parents, finding out the sex of their fetus on ultrasound is more of a curiosity than a necessity. But for some people, learning the