Back in Nov 2010, I had my period 2 times in one month. (Started 1 week early and was off for 3 days then started again.) Dec 2010 I had my period 3 times all lasting at least 3 days. It's now Jan 3 and I have been off for 1 week and just started again... My husband and I are starting to get worried. I am on birth control and I have a 16 month child. Is this something I should be worried about? Should I go to my obgyn?