Could this be implantation bleeding?????

I got my period 10/03/2019 and ended 10/10/2019 on 10/16/2019 i had that on my underwear then on 10/17/2019 i had that come out when I wiped and on 10/18/2019 as well but it stopped after that I was suppose to ovulate on 10/17/2019 could I have ovulated sooner and this be implantation bleeding I have never had this happen before and we are actively trying to get pregnant..

please help