Implantation bleeding?

I posted this in another group earlier, but I need some help ladies!! I had my period 9/23 so I'm due for my period around 10/20-10/22. I had brown discharge this past weekend (10/15 and 10/16) and that's it. I've never experienced that ever before my period. I'm cramping on and off. I have 3 kids, but I've never had this before ever. Could that have been implantation bleeding? I haven't had anymore since yesterday and today I've had some jelly like discharge. Sorry if that's tmi.