Ultrasound image and blood hormone analysis have confirmed that the Oklahoma City, OK Zoo's 18-year-old Asian elephant, Asha, is seven months pregnant, as shown here on October 9, 2013. (36078)

Seven months of pregnancy down, 15 to go.

That’s the good news the Oklahoma City Zoo shared publicly after an ultrasound and other tests confirmed their 18-year-old Asian elephant, Ahsa, is pregnant. The average gestation for elephants is 22 months, the zoo wrote in a press release.

“It looks like a unicorn,” posted one of the zoo’s Facebook fans after viewing the photo.

“So much better than a unicorn,” the zoo replied.

“How wonderful!” posted fan Amanda Lenzo. “I’m glad I’m not an elephant. I’m five months with my first. I am impatient with my nine months. I couldn’t imagine 22 months. I think i know what i will be planning for my daughter’s first bday….maybe a zoo trip.”

This is the the second pregnancy for Asha. Her first calf, Malee, was born two years ago, the zoo reported.

The father is a 43-year-old named Rex, who is from the African Lion Safari in Cambridge, Ontario. He has sired five offspring previously, according to the Oklahoma City Zoo.

“Asha has proved to be a great mother — she’s diplomatic, setting boundaries when she should while giving Malee the appropriate freedom to explore,” said Nick Newby, the zoo’s pachyderm supervisor.

Dorrine Mendoza | CNN