About HP WASH

Ok.. So I was HP washing from lv 124 to 130 now.. but just when I HP WASHING.. It won't let me take AP out of HP/MP pool because of lack of MP.. to HP wash... I know I only need help more MP point to wash the last point off MP. And my question is Can I still wash that AP from HP/MP pool wait until I level up again?

You can get back that point when you level up.

The formula used to calculate the minimum MP for thieves is:
Formula for thieves = level x 14 + 148