Could this be implantation bleeding? Sorry if TMI!?

Monday, May 30th I had some clear discharge with some pink in it...there wasn't a lot only a little. This happened twice that day. Friday, June 3rd, I had some cramping...kind of like a period cramp but less painful. Saturday, June 4th my lower abdomen was a little tender to the touch. Today, I had cramping again...do you think I could be pregnant and do you think that could be implantation bleeding? I have no std's so Please no rude comments! Thank you in advance!