I believe Gardasil is a cause to my menstrual problems.  I am 22 yrs old always had regular periods 5 days in a month.  I had my shot back in March 19, 2013 and about a week later I started spotting 2 days before my regular period and I've never spotted before in my life! In April I spotted for 2 days only and never got my period after those 2 days of spotting. Then I had my regular period on May 26 which I spotted 2 days again before having it.  Now its almost the end of June (June 26, 2013) and I have been bleeding for a whole entire month with blood clots since May 26th....I believe it is due to Gardasil if you haven't gotten it please do not! Has anyone experienced this too?