On December 16, 2004 I started my period. It was a normal period for me lasting 5 days. On January 16, 2005 i was waiting for my period to start. On january 21, 2005 I took a pregnancy test, it was negitive. My period did not show. A week after I took another pregnancy test. I got a positive. The next day i went to a doctor to confirm the pregnancy. I had a ultrasound and a pee test. Post negitive. Febuary 14,2005 rolls around I start my period. It's a normal period lasting 5 days. On March 15, 2005 I am expecting my period to start. March 20, 2005 my period is a no show. I take a pregnancy test it is negitive. April 9, 2005 my period starts. This period was a little abnormal. I last for 4 day and is really heavy for 2 out of the 4 days and light on the other 2 days. Normally it is light at begining heavy on day 2 and 3 and tappers of day 4 and 5. May 5, 2005 brings my period. It is like that one in April. June 15, 2005 is when i expect my next period to start, no period. I didn't take a pregnancy test this time. Thought maybe it was just going to skip. On, July 20, 2005 my period starts. My periods come on average ever 29-32 days. I track all of it very accurately so i know that i have every date starting and end for like 2 years now. Is there anything that i should be worried about. I have read a little on it, but have only found a few things. Alot points to stress but i don't have alot of stress in my life. Another thing I have read about is Ovarian Cysts. Does anyone have an info on what i should do or what could be causing my period to act to out of wack?