very light implantation bleeding? no pic

We are not trying but not, not trying😉. We have just been pulling out and having sex whenever and I'm not tracking. But, of course when it's the tww I'm excited! I've been having some cramping for a few days (my last period was March 10th)  and I don't expect my period for over a week. Yesterday I had the TINIEST but of light pink in my cm. I know that I'll just have to wait a few days and test but just wanted to see if anyone experienced IB like this and went on to get a bfp