Implantation bleeding??

I ovulated on the 19th and my period isn’t due for another 9 days. My periods are pretty regular so I was just wondering if this could be implantation bleeding or just the start of my period? I put a panty liner on because when I used the bathroom this morning there was a little bit of blood on the toilet paper. I had it on about 6 1/2 hours and this is all there is. 🤞🏼 for implantation because I’ve been ttc for almost two years.