Thin Yolk Sac

Jennifer
Has anyone ever been told during an ultrasound that one of the babies has a thin yolk sac?  Also, without a lot of fluid around it? 
I'm pregnant w/twins, one implanted about a week behind.  They both have a heart beat, but the heart beat she said she saw for Baby A (which implanted a week later) she said was kind of slow, and had a thin yolk sac with not much fluid around it.
I have so many questions.  I feel like the ultrasound tech didn't tell me much, maybe because she didn't want to upset me, but I can't stop thinking about it!  😫
Thanks in advance! 

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