Period ?

LEANNA • 18 happily in Love with ♡ ᏩᎥℓβℯrτ ϻαrισ
So since I been on depo . For about a month in a half in October last month I was expecting to get my period on the 19th but it never came and my friends were telling me that was normal ? So I just didn't pay no mind to it then the 1st of November came around and I had some really really light spotting I thought it was my period late before all that happend I was worried and thought I might be pregnant so I got a test came out negitivity ? So as the day went on my bleeding started to get more dark & a lil moderate so I'm thinking it's my normal period just depo made it late but useually my period only last 6 days & I'm still bleeding ?? Idk what is going on