Green’s Dictionary of Slang

1. pregnant.

c.1698		B.E. Dict. Canting Crew n.p.: Coming women such as are free of their Flesh, also breeding Women.
1725		New Canting Dict.
1737, 1759, 1760, 1776		Bailey Universal Etym. Eng. Dict.
1785, 1788, 1796		Grose Classical Dict. of the Vulgar Tongue.
1811		Lex. Balatronicum.
1823		Egan Grose’s Classical Dict. of the Vulgar Tongue.

2. of a woman, wanton, promiscuous.

1690		A Weeks Loving, Wooing and Wedding [song] Jinny was a coming Lass, her Silence was consenting.
c.1698		B.E. Dict. Canting Crew.
1725		New Canting Dict.
1737, 1759, 1760, 1776		Bailey Universal Etym. Eng. Dict.
1785, 1788, 1796		Grose Classical Dict. of the Vulgar Tongue.
1811		Lex. Balatronicum.
1823		Egan Grose’s Classical Dict. of the Vulgar Tongue.