Implantation?

Hi everyone, I’m 9dpo today and have been having af cramps since 7dpo. This morning when I woke up I noticed brown spots on my panties and put on a panty liner and then later On I dtd with my husband and when I got up and cleaned up, I immediately noticed a pink tinge on the tp. (Sorry tmi) then I wiped and there was brown and pink again and completely disappeared. Has this happened to anyone in the past and got a Bfp? Trying not to get my hopes up but I never ever spot before af!