Implantation bleeding?

Thursday night I had a smalk size clot of dark brownish reddish blood. Only time.And then for like that day and the next days it was like pinkish and brownish only when I wiped. And only for like 2 day never had to us a tampon or pad at all. And my period not suppose to start tile the 12th. Could this be implantation bleeding. Trying not to get my hopes up.