Answer:

amnios

Answer	Crossword Clue
AMNIOS	Prenatal tests, for short
AMNIOS	Tests done by OB-GYNs
AMNIOS	Prenatal procedures

AMNIOS	Prenatal procedures performed by OBs
AMNIOS	Short medical procedures?
AMNIOS	OB's perform them
AMNIOS	Prenatal procedures, informally
AMNIOS	OB-GYNs perform them