Implantation *update

Is it possible to have late implantation spotting at 15 dpo? Or am i just experiencing maybe the start of a late period?

*Update- So typically whenever i get a period and i have spotting if i dont start within a couple hours its this in the morning.. i peed this morning so sure AF was here and nope only the smallest amount of brown which tells me it was old probably from last night there was so little if i wasnt looking for it i wiuldve missed it! Im pretty sure its late implantation cause AF is yet to offically be here ❤🙏! Also i just looked back at the calander because obviously sperm can only live 5-7 days later not 15 so i thought id see how recently we baby danced sure enough it was just 6 DAYS AGO so its not totally impossible that this is implantation!!! ❤❤🙏 ugh please pray for me!