A South African teenager has reportedly given birth after being stabbed in the stomach.

The teenager - who was stabbed in her tummy by an ex-boyfriend after he caught her performing a sex act with a man at a bar - has allegedly given birth after the knifing allowed sperm to move from her stomach to her internal reproductive organs, creating a baby.

Despite having no vagina, she went on to have a caesarean, giving birth to a boy resembling her attacker.

The story, which is currently circulating the internet, first surfaced on the internet 22 years ago.

Dr Allan Pacey, a lecturer at the University of Sheffield said: "I imagine it is incredibly rare. Timing is everything and it would have had to happen very quickly after the man ejaculated. The fact the son resembled the father excludes an even more miraculous conception."