Job 39:2

and [if] thou hast numbered the full months of their being with young, and [if] thou hast relieved their pangs:

Canst thou number the months that they fulfil? or knowest thou the time when they bring forth?

Can you count the months that they fulfill? Or do you know the time when they give birth?

When they couch in their places, and remaine in the couert to lye in waite?