"at the start of taking the levonorgestrel  i thought that it was great. no side effects.  at week 3 i started my period, which i was kinda expecting because of the warning of break through bleeding. the period was the worst i had ever had, a lot of bleeding and tissue loss. i consulted my doctor and she kept telling me that as long as it was getting lighter there was nothing to worry about. on day 25 of  i was hospitalized and needed an emergency blood transfusion.  they gave me 7 units of blood. i would say never take this bc pill."