Dr Karen Boyle, of the Greater Baltimore Medical Center said: "When the woman had her ultrasound initially they saw one sack, one baby developing, and that baby had a certain gestational age." Then they noticed a second heartbeat in a child that was much, much younger developmentally.
The 31-year-old woman was first pregnant with a baby girl. But, the recent ultrasound report showed that next to the baby girl there was a second, younger male baby developing side by side in Mrs Julia Grovenburg's womb. Julia Grovenburg and her husband Todd had already named the baby girl as Jillian. Now they will call the younger one as Hudson.
Superfoetation condition is very very rare and it can be dangerous for the younger baby as it could lead to premature birth and lung problems. But in case of Mrs. Julia Grovenburg's case, it should not lead to a problem as the gap between the two babies is only two-and-a-half weeks.