T.J.
I have had the same thing, my dr. called it "dry periods". He says it's normal to have periods like that occassionally but if it's a continous thing to get it checked out. I might have 2 or 3 in a row like that then have "normal" periods for for awhile. I had a friend who had them continously for about 6 months, she had a d&c and was fine afterwards. But I would still talk to your dr. about it.