But that is because they are medical wonders – after being conceived three weeks apart. In an incredibly rare phenomenon known as superfetation, Rebecca Roberts effectively got pregnant with Rosalie while already pregnant with Noah. Miss Roberts, 39, was stunned when she found out she was having twins as two earlier scans showed no hint of a second foetus. It meant while Noah weighed 4lb 10oz, his sister was just 2lb 7oz. She and partner Rhys Weaver, 43, have been told a fertility drug she was taking may have caused her to release an egg while already pregnant.

Source: Daily Mail February 07, 2021 22:54 UTC