Implantation bleeding?

Hi everyone! We’re been TTC for over 4 years after a miscarriage and for the best 5 days I’ve been spotting brown (a little bit of red in the beginning) and cramping. Is this normal for implantation bleeding? Everywhere I’ve seen says 2-3 days not 5 now...? Im so hopeful. I really want this to be the month. I feel like I’m pregnant. Any advise please!