Superfetation, a rare condition where the female's reproductive cell is then fertilized by the male's reproductive cell after the first egg cell and sperm cell are ovulated, is a phenomenon that has long been speculated as far back as the 4th century by Aristotle.
The Hill Family, living in Australia, is reported by BBC that the woman of the house is conceived by having a twin with a ten-day gap. The married couple did not expect the following news since Kate Hill; the child bearer also has a condition called polycystic ovary syndrome - which the both then takes sessions for it to be treated - that makes them both think that Kate will never bare and give Peter their first child according to a BBC report.
The condition is not common to the doctors since there are still no legit explanations on how these egg cells are still ovulating even if there is an ovulated cell. A typical woman that is pregnant does not usually ovulate. As the woman gets pregnant, they excrete the hormone progesterone, which is the reason why the doctors have these doubts where these conditions are still obtained by some of the pregnant women of the globe. As to Peter Hill's situation where the sperm cells are still existing inside Kate's reproductive system, science explains that it is possible that the cells inside Kate could still be working, and for this instance, there could also be a possibility of another pair of fertilization. The sperm cells inside could still live up to several days, approximately five (5) days, according to The Mayo Clinic. There are also studies coming from The U.K.'s National Health Service that sperm cells could live up to seven (7) days and notes the public that sperm cells could wait inside the female's reproductive system and could travel up to the woman's fallopian tube so it could find another egg cell since it has its time as the female is not yet ovulated.
On the other hand, the twin sisters, Charlotte and Olivia are still safely delivered by their mother although the twins differ from their mass since it is the effect of their gaps. Their father, Peter, still considers the twin as their "little miracle."
