Hi, Of course, you have overdosed yourself and the bleeding that you have now is most likely a result of this hormonal disturbance created by the emergency medication taken twice in the same cycle. Please contact a specialist for further evaluation and support. You should anyway exclude pregnancy, get a trans-vaginal sonogram and a complete hormonal profile. Proper treatment in case of hormonal imbalance includes rest, hormonal supplementation, nutritional supplements to improve the general condition and observation. Please remember, use of emergency pill should be restricted to only a couple of times a year and a regular form of contraception should be used for general purposes. Hope this helps.