Mum & dad: World's youngest and oldest Currently the worlds youngest confirmed father is Sean Stewart, who became a father in 1998 at the age of 12. (SUPPLIED) Kordeza Zhelyazkova,an eleven year old schoolgirl in Bulgaria is said to have probably become the world's youngest mother after she gave birth to a baby on her wedding day. (SUPPLIED) Nanu Ram Jogi who fathered his (estimated) 21st child at the age of 90. (SUPPLIED) Mrs. Rajo Devi gave birth to a healthy baby girl in 2008 at the ripe young age of 70 years old. (SUPPLIED) In this Picture , in 1940, is Linda Medina, her baby, and the doctor who delivered the baby. Her son was 11 months old in this photograhph. (SUPPLIED) Email Facebook Twitter LinkedIn Whats App Pin Interest