The last few months I have been having very very light spotting. It's not even enough to cover up a pantyliner. It's been almost every day. There has been about 3 to 4 days out of the month where there is nothing. Most of the time when I wipe it's a brown color. In December I recently got off the depo shot in hopes of trying to get pregnant. The first month off I had a very heavy period and every month after that it has gotten lighter and lighter. Any one have any idea what this could mean or what is causing it? Any help and info I'd greatly appreciated.