Implantation Bleeding?

Hi ladies! I was just wondering if anyone had any experience with implantation bleeding? I had a little bit of light spotting yesterday, but I'm still a week out from when AF is supposed to come. My cycle is always super regular, so I don't think it's AF coming early. Just wondering if y'all think it might be implantation bleeding or if it could be something else? {We're trying for #1, so I'm new to all this!}