"Doctors successfully located Todd and Julia Grovenburg's growing baby girl Jillian, but then discovered another smaller baby -- what could be Jillian's younger brother -- growing beside her.
The Grovenburgs may have conceived their son Hudson a full two-and-a-half weeks after Jillian, according to statements given to KFSM-TV in Ft. Smith-Fayetteville, Ark.
Different from identical twins or fraternal twins, the Grovenburg babies would have separate due dates and are considered to be a rare medical occurrence. "
http://abcnews.go.com/Health/Reprodu...ory?id=8656369
"Reports of superfetation, or conceiving while pregnant, are so rare that Boyle said, "There is no prevalence or incidence in the literature. I could only find about 10 reported cases." "
Let's hope it turns out OK.