Implantation or no?

My last period was March 14th, I had boob tenderness on March 28th and thought maybe i was ovulating cause I never have boob pain through out my cycle.. and then just Monday the 11th I had light cramping and very light pink spotting for like twoish hours just when I wiped and then once when I wiped there was a tinyyyyy blood clot. Nothing since that tissue. No trace of spotting or anything. My periods not due till the 18th according to my apps I track with. I know everyone says you can’t have implantation bleeding with any type of clot but if it wasn’t that then what was it? Lol I’m confuseddddd.