Light brown/yellowish spotting

Rachel • TTC #1 since January `14! Hoping for a BFP, but trusting in my Lord to provide in His timing! He is good-- all the time!
Hi all, 
​I'm on day 62 ( I have long cycles and have been waiting for af to show....) but yesterday and today have gotten a little bit of very light brown/yellowish spotting when I've wiped. I have no idea if I ovulated as I have been waiting for af to show.
​Could it be implantation? I've never had this particular yellowish color before so I don't know...