MAPLE VALLEY, Wash. – A Maple Valley woman says she was completely unaware she was pregnant until it was time to deliver.

She calls it "the shortest pregnancy on record" – lasting a whole 36 hours.

It seems impossible, but it happens.

Amanda Brisendine was 37 weeks pregnant when she gave birth to a healthy baby boy, Alexander, via C-section last Sunday.

KING

Amanda Brisendine didn't know she was pregnant.

She said she had no idea she was pregnant until doctors told her 36 hours before she gave birth.

"I had nothing. No preparation at all. We were talking about names on the operating table," she said.

Amanda isn't completely clueless about childbirth. She has a 14-month-old daughter. But she says this pregnancy provided none of the standard symptoms.

"I had normal periods, no morning sickness. I was working right up until Thursday," she said.

The question everyone is asking is: How can a woman be 9 months along and not know she's pregnant?

Doctors here say it's more common than you might think.

"It's not a rare event. We probably see it even at our local hospital every couple years," said Dr. Jim Haines, Overlake Medical Center.

Doctors believe Amanda was fooled by pre-existing problems with her ovaries that produce irregular menstrual cycles.

She says she never felt the baby kick and she had no cravings. She did gain some weight.

"I quit smoking, so I thought that's why, and my grandma likes to use a lot of butter and sugar in her cooking, so I blamed her too," said Amanda.

Ironically, Amanda was worried she might not be able to have another baby because of those ovary problems.

Amanda said she wanted to go public with her story so others in the same situation won't feel embarrassed.