My resting heart rate was at an all-time high. My Apple Watch tapped me and said it was high because I was not moving and that I should seek medical help if necessary. That's a total of 140 people in the room. Taking a seat. In my workplace. My mouth tasted like pennies, and I could hear blood rushing in my ears. I had a missed menstruation 10 days prior and a positive test fifteen days after this. That day, I drove to the emergency room and the tests came back negative, but my PCP said she assumed I was pregnant because she had experienced the same thing. So if I were you, talk to your doctor and find out for yourself if you really are pregnant.