My heart rate


I am super paranoid because I had a miscarriage in Jan and an ectopic in July, but when I found out I was pregnant this time I noticed that my resting heart rate increased on my Fitbit. This weekend I have not been having a lot of symptoms and I noticed my heart rate lowered. Do you think with both of these things, it is a bad sign of a possible miscarriage. I know I probably sound nuts but it has been a rough year.