yes decaff still has caffeine in it, but about two cans of caffeinated soda a day is considered okay.
a cup or two (not those super huge mugs) of regular coffee a day is considered okay less then 400mg is what is recommended though that number i believes has changed and may have gone down.
they used to say four or five cans of soda were okay but now they say 2.
decaff coffee means less caffeine, not caffeine free.
decaff coffee has astronomically small amounts of caffeine, well compared to regular.
if you are worried about a cup or two of decaff coffee a day, don't stress to much. as long as you are drinking plenty of other fluids..water Gatorade, milk, orange juice, and other stuff then your little bean will be all right.
if you are really concerned, hold off and wait until your next ob appointment, i will bet they will be able to tell you how many mg of caffeine your decaff has.
and it won't be a lot.