vanishing twin

So I got an u/s yesterday and the doctor noticed an empty sac.. He called it a vanishing twin.. The other one is healthy and doing great.. Do I have anything to worry about ? Has this happened to any of you before? 

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