Are cold sores an early sign of pregnancy?

Nicole
Hi all!
I'm currently experiencing cold sore breakouts one after another. I'm not stressed, sick, or have had any major exposure to the sun. And I very rarely experience getting a cold sore much less back to back outbreaks. I've read online it could POSSIBLY be an early sign of pregnancy but of course I know WebMD-ing my symptoms doesn't prove anything. Has anyone had a similar experience?