Is it implantation bleeding ?

Angelica

I started my period 5 days earlier which has never happened Im not regular but usually it’s only my like one or two days difference. Either I’m early two days or late 2 days . The begging of my period was not like it normally starts in fact it hasn’t been like this in years . It was a dark brown color at first it was heavy thought . But now it’s not heavy it’s light but not spotting . I’m a bit confused as weather or not it’s an implantation bleeding ? I had a ectopic pregnancy about 6 years ago and i haven’t been able to get pregnant since then 😔 and im not taking any type of birth control . So every time something usually happens I don’t know if it is or not pregnancy signs . Honestly I have been so disappointed or got over excited in the past when I thought I was but always was a false . It’s not a good feeling im not saying im giving up but this is very hard and emotional for me . I don’t know if im having implantation bleeding now ? Its the second day im scared . I’m having lower back pain and light pelvic cramping its not a heavy flow , but since im using a tampon i cant tell if its spotting , but the tampon hasnt been full of blood its been light eveytime i change . Im usually heavy the first 2 days then by the third day it’s lighter . Should I be getting my hopes up about this ? Could I finally be pregnant?