Mei Xiang during her April 30 artificial insemination. (Photo via National Zoo)

Just as we thought we had cleansed our memories from April 30, when the National Zoo live-tweeted an artificial insemination procedure conducted on Mei Xiang, its female giant panda, comes the latest development in panda-pregnancy watch for all the world to see.

At this hour, the zoo is live-tweeting Mei Xiang’s ultrasound. The panda, the zoo announced last week, might have responded favorably to that April procedure and could be with child. Then again, it could be a pseudopregnancy. That’s usually the case with Mei Xiang, who has been fake pregnant five times since 2007.

In April, zoo veterinarians used frozen sperm samples collected from Tian Tain to potentially impregnante Mei Xiang. The whole thing was broadcast—and mocked. But since that day, Mei Xiang has experienced a secondary rise in urinary progesterone, meaning that she’s between 40 and 50 days from either delivering a little brother or sister for dearly departed Butterstick, or revealing that she was never pregnant in the first place.

Of course, as the zoo notes, this ultrasound will only occur “as long as Mei Xiang cooperates.” Then again, they got her strapped down on a table for that insemination procedure, so, yeah, we’re banking on this happening.

The ultrasound tweets are being collected under #cubwatch, though as the giant pandas are our equivalent of, say, The Huffington Post’s vertical devoted to lateral glimpses of cleavage, feel free to use #dcistsideboob as well.