Mono Mono Twins Finally Home From Hospital, Parents Having Trouble Telling Girls Apart

A rare set of mono-mono twins born actually holding hands has been released from the hospital after more than one month in the hospital. Now their parents are having a bit of trouble telling them apart, given their physical similarities.

The twin girls, Jillian and Jenna, were born at Akron General Medical Center in Ohio; they were nicknamed the mono-mono twins after it was discovered that they shared an amniotic sac while inside their mother's womb. Sarah Thistlethwaite spent two months in the hospital on bed rest in order to ensure that the twin girls would be born healthy. She is thrilled to be home with her baby girls and their big brother, Jackson.

The family was reunited on Saturday, June 7, after spending so much time apart.

"We all came into the living room and everyone kind of relaxed and Jackson played with the toys and then looked at the girls," Thistlethwaite told "Good Morning America." "It was awesome to be in our own family group … with nothing hooked up to the girls."

Even though the baby girls were born seven weeks early, they quickly grew strong and healthy and doctors do not anticipate any complications from their early births. Instead, they will likely continue to grow and be the same as other preemies. One complication that the girls' parents did not necessarily anticipate was their nearly identical physical attributes causing problems.

"We can't find any difference right now," Thistlethwaite said. "We thought for sure it was Jenna, but it wasn't … it was Jillian. I think we're going to have to paint some toenails to keep them straight."

The parents tested themselves on who was who but failed. For now, they are leaving the hospital ID tags on the girls until they can come up with a better system of identification. It's not unusual for parents to misidentify their twins, especially when they are 1 in 10,000.