Anyone else? Implantation bleed or short period after coming off the pill

I came off the pill on 8th May and had a normal withdrawal bleed a couple of days later. Using opks I think I may have ovulated around 1st June and then had two days bleeding from 8th June. Now I really don't know if the 2nd bleed was a short AF, implantation or my body still getting used to being off the pill!