Does anyone who is pregnant/ has been pregnant wear a heart rate monitor and can tell me what happened to their heart rate in early pregnancy?

I had a chemical pregnancy earlier this year and for the 3 weeks I was pregnant my heart rate was about 6 beats more than usual. I’m trying again now and in the TWW right now but my heart rate hasn’t gone up, so now I feel like I’m out already

I’ve had some symptoms of pregnancy but because the heart rate was so obvious last time I feel like my body is playing tricks on me.

It would be good to know what other people have experienced with this.