Imagine going in for an ultrasound for the one child you're expecting, only to find another mystery fetus has appeared since you originally got pregnant.
It's a shocker few people in medical history have experienced, but Todd and Julia Grovenurg are the odds-busting expectant parents looking forward to two bundles of joy where there should be only one, reports KFSM in Fort Smith:
"We went back June 4th to do our ultrasound and that was a shocking, absolutely shocking experience," Julia Grovenburg said. "I turned around and I looked at him [husband Todd], and I said well at least we know we're not having twins!"
But not so fast, mom-to-be ...
"About 2 or 3 minutes later she said and baby number two has got a healthy little heartbeat, and I just started gagging," Julia said. "I mean, I was getting sick." "Both in shock," Todd agreed.
To make things a little weirder, the two babies have due dates in two different years - December 2009 and January 2010.
It's a condition know as superfetation, which loosely means kid number two was conceived after kid number one was already in the oven. And it's apparently extremely rare - or at least rarely documented - according to Dr. Karen Boyle in an ABC "Good Morning America" interview:
"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.
"It does really sound like this is a true case of different conception times for these children," Boyle continued, adding that she could only find "about 10 reported cases" of superfetation."
The good news in this medical marvel story is that both babies are apparently healthy and developing normally, though little brother is about two-and-a-half weeks behind big sister. There is usually a risk in the few cases like this that the younger sibling's development will be hampered by the older one's growth, but for now they mini Grovenburg's are playing together nicely.
Not even a bout of "stop touching me-itis" to report so far.