Seeing not one but two embryos on your first ultrasound can bring up a lot of feelings: "This was very unexpected, and I’ll admit I am scared," says one BabyCenter mom with twins on the way. "I'm 4'10 ...

Cinematic-MRI shows twins vying for legroom in utero. Dec. 3, 2012— -- Sibling rivalry can apparently begin even before birth and researchers in London have remarkable footage of twins fighting ...

The mom was 20 weeks pregnant when she discovered that her twins, Graylen and Chaysen, had twin-to-twin transfusion syndrome.