Depo and period after depo

I’ve been off depo since June 6th the last date I could get my shot was June 17th so I’ve been off about 6 weeks and I started spotting last month light pink brown spotting I took a pregnancy test multiple all came back negative it lasted about 3 days, now this month I started bleeding through the night yesterday It was about a medium amount of bright red blood and I spotted the rest of the day after that lightttt lighttt bright red blood and now I’m not bleeding at all? Any suggestions as to what’s wrong with me ? I’m at a loss my periods. Previous to havin my daughter and getting back on the shot has been completely normal 5 days. 29day cycle and now everything is weird and I have no clue what’s going on with my periods.