Implantation?

B • 22/ MARRIED💍 TTC FOR 22 MONTHS, GOT PREGNANT VIA LETROZOLE CARSON MICHAEL 💙👶🏼 02/02/2020

When I wiped earlier it had more brown blood on it but this one has more mucus! Could this be implantation? I also had reddish-brown blood on the 3rd but tested negative! Thanks in advance for the input ☺️