Womb and belly
In Psalm 58:3, a womb signifies that good is to appear, and the belly, that truth is. (Apocalypse Explained 710[5])
Month
A 'month,' as in Genesis 29, signifies the end of an earlier state and the beginning of a following state, thus a new state. 'A month' signifies a full state.
(Odkazy: Arcana Coelestia 3814)