Ananova:

A mother has beaten odds of a million to one after conceiving twice in a month.

Beverley Robson, 32, was still releasing eggs after her first conception and fell pregnant again two weeks later.

Beverly gave birth to healthy girls Leah born weighing 6lb 6oz and Lara 4lb 4oz.

The girls who come from different embryos and are not twins despite being born the same day, reports The Sun.

The phenomenon, known as superfetation, usually results in the second baby dying as the older gets better nourished in the womb.

According to the Sun Beverley of Bishop Auckland, Co Durham said: "They're my miracle babies. My consultant told me I should prepare for the worst because it's so rare for the second baby to survive.

"Your hormones are supposed to stop you ovulating when you're pregnant but mine didn't. Craig and me are thrilled, our family is complete."

Beverley also has two sons Kyle, nine, and six-year-old Zack with husband Craig, 29.