Answer:

DUEDATE

Answer	Crossword Clue
DUEDATE	Obstetrician's calculation
DUEDATE	Book borrower's concern
DUEDATE	When to expect what you're expecting

DUEDATE	Estimated time of arrival
DUEDATE	Deadline
DUEDATE	Library patron's concern
DUEDATE	Time for paying: 2 wds.
DUEDATE	Payment time.
DUEDATE	Note in a tickler file.
DUEDATE	Time for payment
DUEDATE	Labor day?

DUEDATE	Library stamp
DUEDATE	Library receipt info
DUEDATE	What a pregnant woman or a library book has
DUEDATE	When the expectant are expecting
DUEDATE	Estimated time of delivery
DUEDATE	Pregnancy estimation
DUEDATE	Deadline info
DUEDATE	When a baby is expected

DUEDATE	School assignment specification