BFN 🙁

On 4/5 I experienced what I'm thinking was implantation bleeding, we BD on 3/27, exactly 9 days earlier than when this happened!  it was very light and only after wiped and only happened a couple times. I had some mild cramping, and af still hasn't shown up. I took a pregnancy test this morning and got a BFN, and now I'm feeling discouraged. I have NEVER had spotting like that before, and I'm not sure why I had it now...