So my research has revealed that: yes, it is OK to use hydroquinone with AHA, in that order (1st hydroq., then AHA). It should be good for you because the hydroquinone lightens the skin, and the AHA exfoliates. I've already tried it one night, and everything seemed OK.
Two options for when my prescription runs out are:
-Obagi Nuderm (complicated website...don't really know which products to get, but one of them is 4% hydroquinone, which is my prescription strength)
-Palmers Eventone Fade Milk with 2% Hydroquinone and alpha hydroxy acids. also has a sunscreen; but it doesn't say what the AHA concentration is. no matter, I suppose I can add Dan's AHA. This might be good for when I'm pregnant, since it's OTC and less hydroquinone. But I really think I'm just going to quit the hydroquinone altogether during pregnancy...