Implantation bleeding starting at 9dpo?

I am currently 11dpo. This brown discharge started on 9dpo. Have had two or three spots that have been watery dark red/brown blood mixed, but otherwise going between nothing at all, to clear mucous, to lighr brown mucous. 10dpo I had one dark brown sticky mucous "blot". Very minor cramps, just enough to make me feel like AF is arouns the corner. On 9 DPO when it started i had a good cry thinking AF was showing early.... but it wasnt AF yet! Help, you guys. Could this be Implantatiom bleeding, or am I grasping at straws here? Ill add that I had a chemical in November.