身怀六甲 (身懷六甲) shēn huái liùjiǎ

shēn huái liùjiǎ set phrase to be pregnant
Domain: Idiom 成语
Notes: (CC-CEDICT '身懷六甲'; Guoyu '身懷六甲'; Mathews 1931 '懷六甲', p. 82)