My whole life I've have the most irregular cycles, sometimes I would go 6 months without a period and my shortest cycle ever was 54 days. For the last two years me and my boyfriend have been TTC and after two miscarriages I needed to do something, I learned about vitex first which helps regulate horomones and not being a hormone itself. I did a ton of research for about a week, became obsessed and I read about all the different things to take. I decoded to take 800mg of vitex, 1000mg of maca, evening primrose (cycle day 1- ovulation), and tribulus 500mg (day 5-14 of cycle) and this month for the first time in my life I've has a 34 day cycle. I'm just Now starting on my 2nd cycle but this stuff really works! My mood and energy are also much better, since hormones have a lot to do with our hormones if you have messed up hormones it can make you very bitchy sometimes. My suggestion if you have messed up cycles try these supplements and by all means do your research as I did beforehand.