I started my menstrual cycle when i was 11 yrs old, I will be 22 in a couple days. I have always been irregular but only buy a week or so. Last year I had a miscarriage in April, my periods have been really messed up since the miscarriage but recently I was on my period for about a month. I started 12-5-07 - 12-28-07 and I just started again on 01-04-08. It's not heavy it just kinda comes and goes. I have been a little depressed lately so I think that might have something to do with it. If you have any advice please let me know. I have taken a pregnancy test every month since my miscarriage and it's always negative and I don't have and cramping or pain. Please help!