I had only two wisdom teeth, uppers, not impacted. That's a bit unusual.
I had three. There was room enough for five more, but there were only three.
I have spacious jaws.
Funny, the wisdom tooth that gave me problems "hatching" was the nonexistent one. Swollen jaw, pain, missery, again and again, rupturing gums where it should pop up. After a few times the dentist decided to take some pictures to find out why it was pestering me so much. Then it became clear that it was non-existent. There only was a rudimentary dot to be seen.
All my wisdom teeth are gone now. After they had become too weak to survive another drilling and filling.