Sorry, D.C. Panda fever will have to wait. Giant panda Mei Xiang is not pregnant, the National Zoo announced Thursday afternoon.

Reproductive scientists artificially inseminated Mei Xiang on May 25. She started to show signs of pregnancy two months later.

On Thursday, the panda’s hormones returned to normal levels—but there was no baby. Since she didn’t give birth, the zoo said she either experienced a pseudopregnancy or did conceive, but resorbed the embryo.

WATCH: DC pandas play in the snow

More heartbreaking news for the D.C. area’s die-hard panda fans—Mei Xiang’s pregnancy years are coming to an end. At 19 years old, the zoo said she’s near the end of her reproductive life cycle.But there is reason to hold out hope—there are pandas who have had cubs when they were older than she is now.

Mei Xiang is a three-time panda mom, giving birth to Tai Shan in 2005, Bao Bao in 2013, and Bei Bei in 2015.

RELATED: US-born panda Bao Bao lands in China after leaving DC zoo

As part of the U.S. agreement with China, Tai Shan now lives in China and Bao Bao moved to the Dujiangyan Panda Base in February of this year. Bei Bei also will move to China by the time he turns 4.