But today, an increasing number of women who have just one child later in life are flocking to photo studios to have their pregnant bellies photographed to celebrate their bodies during a once-in-a-lifetime experience.

"I was so happy during my pregnancy," said 40-year-old Kumiko Yoda, who gave birth to a boy on July 19. "This moment will not come back to me again and these pictures are for my own enjoyment."

Yoda was encouraged by a friend who showed her maternity nude photos that she had had taken of herself and just one month before her baby was born, Yoda discovered maternity photo studio "Ixchel" in Tokyo.

Initially, she posed showing only her belly but as the all-female staff at the studio helped her relax, she posed nude for the camera. The black-and-white pictures are displayed in her home.

"Whenever I see these pictures, I can recall how I looked and how happy I was when I was pregnant," says Yoda.