Very light period, at cycle day 79...

[wishnonstarzz]

Should i have had a heavier period?... koz my last normal period was from april 22nd - may 9th, then on june 29th/ cycle day 79 i had alot of light brown blood/discharge.. then at times very very light pink blood, but it wouldn't have been implantation bleeding koz there would be no way of that! and I had this very light bleeding happening for around 1 week...
Im thinking that i would have bled alot heavier koz my last period was so long ago, and wouldnt my endometrium lining in my uterus be so thick that i would have a really heavy period like i usually do????

all help is welcome xoxo