Tachycardia

I was sitting on the couch reading yesterday when my Apple Watch notified me that my resting heart rate was 107! My normal resting heart rate is between 70-80 bpm, so I was super freaked out! Since then, I have noticed a higher heart rate. I asked doctor Google and it seems like it is normal to have an elevated heart rate during pregnancy, but it strikes me as strange it just started. I see my doctor today and will bring it up, but has anyone else experienced this?