There's no stronger bond than one between siblings, and that bond is even more special when you're an identical twin.
It was the fourth pregnancy for Kelsey Hatcher and her husband.
Monoamniotic twins happen in less than 0.1% of all pregnancies and require near-constant monitoring because complications can occur, including the umbilical cords becoming entangled, which could be fatal for the twins.
JamieLynn and AmieLynn Finley, twin sisters born conjoined at the chest and stomach, celebrated their first birthday this month and took their first steps.
Seeing double: A "twin baby boom" has taken over the neonatal intensive care unit at Cedars-Sinai hospital in Los Angeles. Nurses are caring for 10 sets of twins right now.
You may need to do a double take after reading this: There will be 11 sets of twins graduating from one high school in New Jersey!