Single word meaning "pregnant woman"

Does such a word exist?

It has occurred to me that the "woman" part is redundant, since only women can be pregnant (except for Arnold Schwarzanegger in Junior)

Solution 1:

Primagravida is a medical term for somebody pregnant for the first time, and multigravida is in the OED for somebody pregnant not for the first time, so you could coin gravida, I suppose. But in normal usage, I'd say there is no such noun.

Solution 2:

If you can accept a hyphenated phrase, then mum-to-be or mother-to-be are quite common.

(Or mom-to-be in the USA, I presume?)

Solution 3:

Extremely informally, people may say a "preggo"

Solution 4:

The OED records pregnant as a noun as well as an adjective, with the meaning ‘a pregnant woman’, with three citations from the twentieth century alone. I wouldn’t say it was in common use though.