We're trying as well (#3) and went into this without regular periods (they've been all over the place while I was on the pill), but I've been keeping track of things and have had several days in a row of spotting in addition to longer, heavier cycles. I doubt it is from quitting the birth control directly, but your body could be adjusting to regulating itself. Any spotting is generally considered normal, even in early pregnancy, unless it becomes heavy. If you have a positive test and continue to spot, call your doctor. Is it all the time or only occassionally? I've also had what seemed like spotting but was just some light bleeding following intercourse (not painful, but probably from dryness). If it seems related to that, try some extra lubrication. Sometimes I would just notice it in the morning or something. We also had no trouble with our first two, so will see how long this one takes. Hope it clears up soon.