So confused ! Could it be implantation bleeding??

So, a little history my last period was july 25 (usually about 30-32 day cycle) ... i had sex pretty consistantly throughout my fertile window. The day i was predicted to ovulate sex was PAINFUL... it felt like my cervix was super sensitive. Within the last week ive had tender breasts, nausea and after DD yesterday and i was "cleaning up" i had super light pink spotting on the Tp. All today my stomach has been sore lower pelvic area but no blood or spotting at all until just now and only the tinest bit.. hoping its implantation bleeding but is it too late with AF predicted to come in 3 days? Am i just overthinking it 😞 anybody have Nything simular?