Confused

I have been on BC for about a year but not on going . Recently I have been trying to get pregnant . I Stopped taking my BC a week ago and me and my bf had sex unprotected several times and he came in me . I have been ovulating this whole week . Today I woke up with a light pink and brown discharge so I looked it up and it says implantation bleeding . I've been having this spotting all day but its very light . Is it possible I could be pregnant . Please give feed back 👌👍