Pregancy
Impossible to answer considering the phase change change on a day to day basis.
no.
We are only seeing a portion of the illuminated area when the phase is not a Full Moon phase.
It takes about 29.5 days for the moon to complete an entire phase change cycle, which includes all the phases from new moon to full moon and back to new moon. This period is known as a lunar month or synodic month.
It normally takes a week to change a phase
29.5 days from new moon to new moon.
New Moon.
because the moon is rotaing around earth
The phase of the moon you see depends on how much of the sunlit side of the moon faces earth.
The phase of the Moon that comes immediately before the new Moon phase is the waning crescent phase.
Yes, it doesn't matter that the Moon rotates on its axis, that makes no difference to the phase. The phase only depends on the relative positions of the Sun, Earth and Moon.
The phase of the moon that follows the waning gibbous phase is the third quarter phase. During this phase, half of the moon is illuminated, and it appears as a half-moon. The third quarter occurs roughly a week after the full moon and signifies the moon's transition towards the new moon phase.