Forgive me father for I have sinned! You'll be ready to repent in this Pregnant Nun costume which includes black dress, head-piece, gloves and padding.
Warning: although guaranteed to give you a laugh at your party, you could spend most of the evening saying your hail Mary's.

This costume is currently in a Medium only
Medium Male; Chest 38-40 inches, Waist 32-34 inches, Inside leg 32.75 inches