Drake Brimstone wrote:
If I'm understanding what you are saying correctly:
You did not move out of or through a threatened square, just into one correct?
If this is the case then no, you would not have provoked an AoO.
If the monster was threatening the square you started in and you moved, not being able to take a 5' Step into the Difficult Terrain, you would provoke.
Just to be clear, you said 5' Reach, did you mean 10' Reach? Most Small or Medium Creatures have a 5' Reach, Large creatures tend to have a 10' Reach. 5' Reach means you can reach into an adjacent square, a 10' reach means you can reach one square further, leaving a 1 square gap between you. If you were 10' away (a 5' square between you and it) and you moved to next to it and it had a 10' Reach it would get an AoO.
The above assumes non-diagonal movement, but you can't avoid an AoO by moving diagonally to go from a 15' non-threatened square to an adjacent square as you pass through the 10' range during the movement even if it isn't a valid square.
I was not threatened before the movement and I was just noting that it had the standard 5ft reach (ie only adjacent squares)