Garmin watch body battery and pregnancy

Does anyone who uses a Garmin watch heavily (ie wears it all the time and not just while exercising) mind sharing how pregnancy has impacted their Body Battery reading? Or does anyone know how it should? I find kind of loose language online about how it really works, I guess they need to protect their algorithms...

The background: I had to make a major change to my medication for an immune system condition a couple of days after conception, and I’m having a hard time telling what is a pregnancy-loss symptom versus a medication success one. I had two early losses before and while I’m trying to take things one day at a time, I can’t help but get nervous when I seem to be feeling better. I’m at 5.5w now. I should be feeling better from the meds but maybe worse from the pregnancy and figuring out the normal balance is tough!

My body battery has been rising up a lot lately (charging into the 90s overnight) and I can’t tell if that’s 1. A random occurrence completely unrelated to my condition, 2. A sign of impending loss, or 3. A sign that my med change is working and has nothing to do with the pregnancy. I figure if other pregnant folks have good body battery readings when they wake up then I can relax about it.

I go in for my first doc appointment next week and will feel a lot more certain about things then, I just keep fixating on these little signs now.