too soon for Implantation Bleeding?

Sandra

I just got my nexplanon removed one week ago, and my partner and i have had sex 2-3 times after that. I am not taking any kind of contraception. i went to the bathroom tonight and there was very light brownish stuff when i wiped. is it too early for implantation bleeding or is it just cuz i got off birth control? i took a test in the morning today and it was negative 🤔🤔🤔🤔