The patient, known as Vali, had been rendered infertile by ovarian cancer treatment but was able to grow new eggs from healthy ovarian tissue grafted onto her abdominal wall.
She is now almost 26 weeks’ pregnant with twins after two eggs were collected, fertilised and implanted using a standard IVF technique.
Doctors said the new technique could revolutionise fertility treatment by allowing women to preserve their fertility by storing samples of ovarian tissue.
More than 20 people worldwide have undergone ovarian tissue transplants, but the latest operation is the first to successfully transplant the tissue into a different area of the body.
The transplant used Vali’s own ovarian tissue, a sample of which was taken from her cancer-free ovary and frozen before her treatment.