Fraternal twins in the womb are like siblings living in the same house, but they each have their own room with a mini fridge. - Carolina Bibbo, M.D., maternal-fetal medicine specialist There's no ...

Fraternal twins, also referred to as dizygotic twins, form when two separate eggs are fertilized by different sperm, says Dr. Purdy. “Factors including maternal age, family history of fraternal ...

Katey revealed on her Instagram Story that Elsie and Emma were fraternal twins because they had different blood types. They must have checked for that after birth and confirmed that while they may ...