'Months' in the Bible

Truly I've been allotted months of emptiness; nights of trouble have been appointed for me.

Since his days have been determined, the number of his months is known to you. You've set his limit and he cannot exceed it.

What will they care for their household after them, when the number of his months comes to an end?"

"I wish I could go back to how things were a few months ago; when God used to watch over me,

Can you count the months of their gestation? Do you know the time when they give birth,