I'm curious to see what everyone's experience with implantation spotting is! I was suppose to start…

I'm curious to see what everyone's experience with implantation spotting is! I was suppose to start my period on the 5th. Usually I'll have cramps the whole week before. My cramps didn't start till after I had the spotting, and the following week which were pretty intense. The evening of the 5th I had what I think is spotting, very light pink, then Saturday had brown discharge and off and on till that Tuesday. I've had cramps off and on, with no bleeding. I've taken about 4 pregnancy tests, the last one being this last Monday. Tomorrow will be 2 weeks sense I had the spotting.. Any other experiences like mine??