It must be partly because we’re so unused to seeing examples of beautifully pregnant woman in art. Pregnancy remained the preserve of anatomical drawings – humanity at its most animalistic – until well into the 20th century. The stereotypical artist’s view of a woman classified her as Madonna or whore, chaste or sinful. Even though many women were painted in their first year of marriage, a time when they could have been with child, pregnancy is curiously absent from the canon, as if the proof of what she had been up to in the confines of her bedroom was a danger to public health.