Precocious puberty and sex-related abuse makes it possible for 5 year old girl to get pregnant and produce full term baby boy in 1939.

Lina Medina in term pregnancy and in 2nd image Lina Medina with her baby of eleven months of age and the doctor who delivered him. 

Lina with nurse

28 years later

Lina with her grewn up son

very sweet photo of lina medina with her newborn baby

Photographed during pregnancy

Delivered by Dr. Lozada and Dr. Busalleu, Linas caesarean operation was performed at the maternity hospital of Lima Perus.

Son of Linas, Gerado, weighing nearly six pounds, was delivered in good health and both mother and child were released within days.

Lina Medina, born in Paurange, Peru in 1933 had a condition known as precocious puberty. She was only 5 years 8 months when she gave birth.

The child was born weighing 5 pounds and 9 ounces. It is thought that Lina is the youngest mother in recorded history to give birth to a full term, healthy baby.
Doctors discovered Linas menstrual cycle began when she was eight months.

The reason for this disorder is unknown. As it is not every day a 5 year old daughter gets pregnant, research on the disease is difficult. Dr. Gerardo Lozada ,the doctor who delivered her son, was surprised.

Although his father was suspected in sexually molested and get her pregnant, Lina never admitted and the case was dropped for lack of evidence. (later it was revealed Lina Medina was raped by a deranged stepbrother )

Linas son ,Gerado ,was shocked when in ten years, he discovered his sister 15 years was really his mother.

In 1979, Gerado was died from bone marrow cancer.

Thirty-three years after the birth Gerardos, in 1972, Lina was married and had a second child.

Lina was born in the poor country folk in Ticrapo poorest province of Peru.

Joseph Sandoval, an obstetrician, a new light on the history Medinas with a book he wrote in 2002 challenging the Peruvian government to provide financial assistance to her after they forced her to live in poverty in 1939 .

Extreme degrees of precocious puberty in children under 5 are very rare but not impossible.

Pregnancy and birth of a child this young remains extremely rare because extremely precocious puberty is treated to suppress fertility, preserve growth potential, and reduce the social consequences of full sexual development in childhood

you may also check this list of youngest mother in wikipedia—-http://en.wikipedia.org/wiki/List_of_youngest_birth_mothers
sources—http://goo.gl/NPBjF