Funny that you'd ask this as I was thinking of posting something very similar...my dear friend was here, lasting 8 days instead of 6 and invited herself back after only 21 days and she is accompanied by cramps and is very unusually heavy. I used to be regular-ish with a cycle of 28-30 days, like clockwork.
I'm approaching "peri-menopause" as my doctor so kindly put it....I'm not going to make an appt. just for this as I was just in last month for my physical. I think it is related to my new lifestyle but really have nothing to substantiate this -or- it could be peri-menopause. I just wish the Peri part would be done, I'd go for full on menopause in a heartbeat!
So Yes, PossibleSuccess, it has just very recently happened to me as lovely as it is.
First Mini-Goal: Lose 10 lbs. Met 2/22/2010
Second Mini-Goal: 20 lbs. down Met 4/23/2010
Third Mini-Goal: Lost 10% body weight (27 lbs down) Met 9/13/2010
Fourth Mini-Goal: Lose 8 more lbs to = 40 lbs lost :
Back on track
:9/5/2011 First goal: get back to 246