I am 22 years old and am not regular in my menstrual cycle as I had to be taken off my birth control on Feb 9th due to a blood clot that had formed. I was on Seasoneque. Fed 10th I started my period and then on March 17th I started my period, which was about a 34 day cycle. Then in April my period never came. I went to the doctor he said it was due to stress or a hormonal balance. My next period then started on May 2nd putting the cycle back to 47 days. Then in June my period came on the 5, which was 34 days since the last one. It is now July 27th and I have had no period. This is 52 days past my last period. I should have started between the 9th and the 11th. I have taken 6 pregancy test, one every monday at 7 a.m., they have all shown up negative. I am not sure what to do. Thanks for your time and help.