Bleeding Question

Below is my chart from this month- I started off with very light pink brownish discharge then it went to a medium flow with clots and then this morning nothing- just went to the bathroom and a small clot came out.. Is that a sign of implantation bleeding I am typically very normal when it comes to periods...once I saw how light my "period" was I changed the ending date... Anyone have this.. I started the spotting two days before my period..