If One Twin Dies in Utero What Happens
Doctors call it Vanishing Twin Syndrome. It sounds like a magic trick, and in a way, it is. In the first trimester, one twin simply stops developing.
The surviving twin doesn't know what to do. Neither does the mother. The body just reabsorbs the tiny twin, like a messy roommate moving out without notice.
This happens in up to 30% of all twin pregnancies. That's like finding out you had a secret sibling who bailed before rent was due. Poof.