I had the implant removed in July this year and have an irregular cycle. I never paid any attention to my cycle pre-dc and contraception so don't know if it's changed or was always haywire.
I use an app to note my periods on now and last cycles have been 24 days, 23 days, 27 days, 19 days and now 10 days 
I think everything else about my periods is average, average flow and lasts 5 days usually.
Are irregular / frequent periods indicative of a health problem? I've read about pcos but that is generally longer cycles isn't it? I do have a hairy chin though 