I got a Fitbit for Xmas and coincidentally my January menstural cycle started on the 1st of January.
This has allowed me to really easily track my cycle vs my resting heart rate.
You can see on day 1 my heart rate is super high (I was also a bit hungover so that didn’t help…) but it dramatically drops until ovulation on the 14th, climbing until I started my period today.
Has anyone else noticed this or is it a fluke? It just seems a super easy way of tracking ovulation if it’s true!