Help!!

A little back story. My depo expired April 3rd, no period or anything until June 13-21. it stopped and said I was ovulating the 28th so I had sex the 27th & 28th. I started taking Vitex about June 20th because my period seemed like it wasn’t gonna stop & stuff. So today I am 6 DPO and still taking vitex, one 900mg pill every morning on an empty stomach. Everythings been going great until last night i started getting little tiny tiny bits of brown/pink blood when i wiped so I thought maybe implantation?? and then this morning I have this

Is this another period?? because i feel like this is a lot for implantation? Is this because vitex?? I am so confused. My period wasn’t supposed to come until July 12th.