Menstruation or Implantation?

Unprotected sex on the 4th of June, last menstruation period was on may 24-june 2, first i got brown sticky discharge last june 21, by june 22, it subsided. since june 23, i had this. Picture was taken today (june 24). Is it implantation bleeding? Please help thank you#pleasehelp #firstbaby #pregnancy #implantation #implantationbleedingorspotting