gravid

raskaana oleva, raskaana pregnant Pregnant; now used chiefly of egg-laying animals, or metaphorically.
1922, James Joyce, Ulysses:

The gravest problems of obstetrics and forensic medicine were examined with as much animation as the most popular beliefs on the state of pregnancy such as the forbidding to a gravid woman to step over a country stile lest, by her movement, the navelcord should strangle her creature

One slender hand was raised in a graceful gesture gravid with meaning.

The minute she'd settled into the seat next to him, her billowing widow's rig had got redisposed to reveal her neatly gravid waistline, at which, now, he nodded.