According to the data you reported (missed 2 BCP in a row, 3 days afterwards bleeding began that lasts for the last 4 weeks, pills not stopped when needed, blood clots on tampon), it is possible that you might be experiencing a hormonal imbalance that caused irregularities in your menstrual cycle.


Birth control pills contain hormones which are taken in a specific regimen, so that a normal menstrual cycle is imitated. When the regimen is not followed, sudden drops or ups in the hormonal blood levels might occur and this might subsequently lead to unexpected bleeding. The bleeding might differ in quantity of lost blood (spotting up to heavy bleeding). The color might also vary (light pink to brown which actually originates from blood exposed to oxygen for a longer period-older blood).


You might want to visit your gynecologist a for physical examination and laboratory hormonal tests. If a hormonal imbalance is detected, then your gynecologist might recommend certain hormones that might try to retrieve your normal menstrual cycle or at least retrieve the control of the birth control pills.