See twins in the womb week by week as they develop. Learn when their hearts beat, when their major organs develop, and when ...

"I started daily non-stress tests at 26 weeks and went into the hospital. My girls were born at 34 weeks, both 4 pounds 11 ounces ... about 0.8% of all identical twin pregnancies.

A study from the NIH reveals that twins have smaller thigh volumes, less fat, and less muscle mass than singletons starting ...

The Fetal Medicine department discovered the twins had Selective Intrauterine Growth Restriction (sIUGR), a condition that can occur in identical twin pregnancies ... at 26 weeks and 4 days ...

Twins had smaller fat and lean thigh volumes than singletons. They also had a lower thigh fat to lean ratio than singletons, having proportionately 2.7 to 4.2% less fat from 15 to 37 weeks. Previous ...