Here's why:

* Lunar Cycle: The lunar cycle, or the time it takes for the Moon to go through all its phases, takes about 29.5 days.

* Full Moon: A full moon occurs when the entire face of the Moon is illuminated by the sun. This happens once in a lunar cycle.

Therefore, a full moon can only appear once every 29.5 days, not five nights in a row.

What might be happening:

* Optical Illusion: You might be experiencing an optical illusion, possibly due to the Moon's position in the sky or atmospheric conditions.

* Misinterpretation: Perhaps you are seeing the Moon close to full on several consecutive nights, which can seem like a full moon.

Let me know if you have any other questions!