The above is a cropped detail from a print entitled “Knowing the blessings of one’s parents,” by an unknown artist perhaps in 1882. The complete print depicts, from right to left, the 10 months of pregancy (above are months 4 to 7). This print comes from an online exhibition of ukiyo-e (Japanese woodblock prints) and yamato-e (Japanese painting) called “Japanese Art on the Subject of Medicine”, from the Digital Clendening online archive. This archive is the digitized portion of the Clendening History of Medicine Library, at the Kansas University Medical Center.
In addition to the above print, there are two other prints depicting prenancy, here and here. The latter one, by Shoshi, is particularly fanciful, depicting a pregnant woman with six heads and 12 bodies, and therefore carrying 12 fetuses.
There are a couple of other exhibits in the Digital Clendening site that I found particularly worthwhile: Chinese Public Health Posters (the first one about cholera is a doozie), and Portrait Collection, an exhibit of over 500 portraits of physicians and scientists.