Common to bleed after Pap Smear?

Yesterday I had a Pap Smear. The Gynecologist commented on how I’ll be starting my period soon. I have no idea how he knew that, I didn’t even know that, being that my periods are very irregular.
Anyways when I got home I had a little spotting so I assumed it was my period and wore a pad. But I didn’t bleed for the rest of the day. Follow to today still haven’t started a “period”. So I’m thinking the blood was just from the Pap smear. I’ve never bled with any other vaginal checks though. Has anyone else experienced this?