What phase of the moon occurs 3 days before a new moon?
During the week before a New Moon, the moon is a waning crescent.
It will be the Full Moon again, more or less. The time for one complete cycle of the Moon's phases is just a few minutes over 29 and a half days. Exactly 29 days after the moment of the start of the Full Moon phase, it's about 12 hours 45 minutes before the moment of the start of the next Full Moon.