Yup, exactly. Nothing digital is truly safe. You want to properly avoid having your data secretly subpoenaed? Use a fucking journal or planner, and just mark your period days with a different colored pen, or put a raindrop in the corner and say it was days you personally predicted it to rain. Turns out, your tarot cards are just really bad at predicting the weather.

You could be open about it, and use it to track symptoms, calculate days between cycles, etc… But the more detailed you make it, the more obvious it will be if someone else gets ahold of it.

And make sure to lock it in a safe and burn it when you're done with it. Also don't share with your health Care provider without vetting them, and ensuring they aren't recording and disclosing your information. Or using AI. Good luck, essentially impossible to get good health Care for women, same as it ever was.

Your car has electronics, you should use a horse instead.