Green’s Dictionary of Slang

gone adj.²

pregnant.

c.1595		Shakespeare Love’s Labour’s Lost V ii: The party is gone; fellow Hector, she is gone; she is two months on her way [...] the child brags in her belly already.
[1672		Wycherley Love in a Wood Act V: Indeed, I found myself six months gone with Child, and saw no hopes of your getting me a Husband].
[1751		Smollett Peregrine Pickle (1964) 462: I was six months gone with child].
1821		‘A Real Paddy’ Real Life in Ireland 125: Peg was seven months gone before she went to chapel.
1840		West Kent Guardian 4 July 6/3: ‘Well now [...] — I’m a gone woman, gintlemen,’ grunted Judy Clampitt.
1852		G.C. Mundy Our Antipodes III 95: One wretched creature died [...] having been slung up by the waist to the rigging when far gone in pregnancy, by way of punishment for misconduct.
1859		Atlas 19 Feb. n.p.: This was the woman [...] who was nine months gone.
1933		J.T. Farrell Gas-House McGinty 186: The wife’s two months gone.
1947		(con. 1944) J.H. Burns Gallery (1948) 337: The woman was far gone and she gave birth to the kid at midnight.
1950		(con. 1936–46) K.S. Prichard Winged Seeds (1984) 94: He was a writer, very charming and all that; but furious when he knew she was two months gone.
1958		T. Capote Breakfast at Tiffany’s 75: But, after all, he knows I’m preggers. Well, I am, darling. Six weeks gone.
1960		B. Kops Dream of Peter Mann Act I: I was pregnant, seven months gone.
1970		C. Brown Down All the Days 94: ‘The dirty oul vomit!’ yelled a younger married woman [...] ‘Trying to look up me clothes and me three months gone!’.
1977		J. Rosenthal Spend, Spend, Spend Scene 24: I was married in white – three months gone with our Stephen.
1982		P. Bailey Eng. Madam 60: It was a boy and it was fully formed, so I must have been further gone than I’d reckoned.
1990		R. Doyle Snapper 53: How long are yeh gone, Sharon?
2005		H. Mantel Beyond Black 122: I was five, six months gone when MacArthur buggered off.