His Girlfriend Took My Pink Toothbrush Would This Be Implantation Bleeding Or Caused By The Morning After Pill?

Would this be implantation bleeding or caused by the morning after pill? - his girlfriend took my pink toothbrush

My friend had the morning after pill 25 hours last Sunday, after they had sex and the condom broke. We had sex in the night between Saturday and took the pill on Sunday evening. On Friday, he began to recognize, and then came a lil harder, like a normal period. This situation lasted until yesterday, and gradually decrease. Your spoting this morning is very low, this is due to the morning after pill, or is it implantation bleeding? it was normal color, not pink or brown, which I will read the implantation bleeding. It's hard enough to need a buffer, suggestions?