First Let Me Say I Had My Last Period On

First let me say i had my last period on the 22nd of Nov than had intercourse on the 3rd of Dec 10 days after that i went to the restroom and when i wiped i seen a really light pink color on the toilet paper that was exactly a week before my due period than just 4 days before my expected period i used the restroom and there was white particles in the pee what could this be could the pink on the toilet paper be implantation bleeding or what