Nayade Elbing, 28, and her husband Arnold had been trying to have children for several years and had consulted doctors in the hope of scientific help in their quest.

After making love at home, Elbing and her husband visited their local entertainment park in Hassloch, Germany and rode the Expedition GeForce.

A week later, tests showed Elbing was pregnant.

"We believe that she conceived due to the G-force of the rollercoaster ride," Dr. Thomas Gent said.