Implantation Bleeding?

So last month my period was off by two days but then I got it. This month though is a little different, I was supposed to start my period yesterday but didn't. Today when I was using the restroom I noticed some pink when I wiped. It's nothing like my normal periods. It's really light and leaves very little on my Tampons. I'm not sure if it's just my period trying to catch up or if it's implantation bleeding. If anyone has any ideas or any helpful tips please feel free to help out, I'd very much appreciate it.