Ok so I am 26 years old 5'7 165 lbs. I have a 2 year old and a 3 year old (both 6 weeks premature). I was on depo for about a year after my second son was born and stopped the day I got my tubes tied around his first birthday. My period didn't come back for many months and have been very irregular ever since. My last period was over 100 days ago. Just got my period yesterday and it is really heavy and clotty! Is this normal or should I be worried??