Has anyone ever experienced anything like this and wound up having a BFP?

So this cycle I have had more milky, creamy discharge than normal. Have been super crampy on and off since 4 or 5 DPO. Yesterday, at 9 DPO I took a test, thought I saw the slightest vvvvvvfl on an frer. Then later in the day, wiped and saw light brownish discharge. Happened once. Then this morning after fmu, I wiped and it was pink like I was starting my period (also crampy this morning). So I put in a light tampon. Went to town, came back a few hours later, all there was, was a little blood on the end and it was dark brown. So I didn’t put another one in. I’ve been to the bathroom twice since then and no blood, nothing. I haven’t been cramping anymore either. What are your thoughts? Implantation bleeding? Have any of you had something similar happen and wound up having a BFP? Thanks!!