I was told at my 12 week ultrasound I may have had twins.

When I went to my 8 week appt they said I'm only having one baby.

I go back for my 12 week ultrasound and now they tell me I have an empty sac so it may have been a vanishing twin?

I'm really surprised because me or my husband don't have twins in our family.

You can see the empty sac ^.