Berlin, April 13: A sexagenarian in Germany is set to become the oldest woman in the world to give birth to quadruplets, media reported on Monday.
65-year-old Annegret Raunigk, a primary teacher, is due to retire this year, is experiencing her 21st week of pregnancy.
She conceived after being artificially inseminated using both donated sperm and eggs. The identity of the babies' father is unknown, The Daily Mail reported.
Raunigk already has 13 children, conceived following 18 months of fertility treatment.
Speaking of the moment she learned she was carrying quadruplets, she said: "Sure, it was a shock for me.
"Once the physician established that there are four babies inside me then I had to do some thinking."
Her gynaecologist mentioned the possibility of an abortion but she decided against this option.
She previously made headlines in Germany after giving birth to her youngest daughter Leila a decade ago, aged 55.
Her 13 children - the eldest of whom is daughter Antje, 44 - are by five different fathers.
The record for the oldest woman to give birth to quadruplets is held by Merryl Fudel from the US, who was 55.
The oldest woman ever to have a child was Omkari Panwar, who was believed to be 70 when she gave birth to twins in India.