Superfetation is a very rare phenomenon in humans that occurs when a woman gets pregnancy when pregnant, literally. The result is a fraternal twin pregnancy, with fetuses of different gestation ages.
When the babies are born, which has to necessarily occur at the same time, one of them will be born prematurely. However, your OB/GYN will try to induce labor on the most convenient date for both babies.
Read the full article on: Superfetation – Can You Actually Get Pregnant While Pregnant? ( 38).
By Zaira Salvador B.Sc., M.Sc. (embryologist) and Sandra Fernández B.A., M.A. (fertility counselor).
Last Update: 07/16/2018