Implantation? Thoughts

So yesterday I came home from work after traffic 730pm i ran to go pee and i had pink spotting (1st pic) Cd23 so i thought my period would start early (it happens). Woke up t 6am expecting to see red but there was nothing . Next day get to work and there's slightly pink and brownish spotting (9am) . The rest of the day nothing just white toilet paper. Slight cramping randomly throughout the day barely noticeable but nothing else. My bff thinks it's implantation. After doing my research implantation bleeding is more common than women think