My Cell Phone is possessed

I didn't think much of it a couple of weeks ago when Mom called asking why I called Stepdad's cell. I didn't, I show no record of it, therefore it didn't happen. I did plan to call her that day, but later.
The Grandson called me today. Saw where I'd called this afternoon......I didn't. We proceeded to have a long detailed conversation which is good, but damn.
My phone is pretty much always with me. I know it was on me both times these calls were supposedly made. I think I need a new one.
Oh, nevermind, I forget I already live in the twilight zone.