Help me identify what in the ultrasound

Bri

I had my first ultrasound yesterday measured 9w1d . I see the baby and placenta but what is this big white circle ??

Glow Resources

Let’s Glow

Glow is here for you on your path to pregnancy

Glow helps you navigate your fertility journey with smart tools, personalized insights, and guidance from medical experts who understand what matters most.

25+ million

Users

4.8 stars

200k+ app ratings

20+

Medical advisors