This is my US at 4 weeks 6days. The blue dot is definitely a baby. However I keep eyeing the dark circle next to the red circle. Does that look like an additional sac? What is that?

Add Comment
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