As a person outside the United States, America appears to me like a very dangerous place to be pregnant in, and what's even wilder is that people (men?) appear largely unaware of it. Regardless of whether you think it's right to convict an addict for a miscarriage or to convict a woman for seeking an abortion or for having a spontaneous one, these are all examples of the environment in which having menstrual data fall into the wrong hands could bring about significant harm. Your proposed defence reads wildly naive and woefully inadequate to me given all this.
[1] https://www.bbc.com/news/world-us-canada-59214544 [2] https://www.cnn.com/2024/09/23/health/south-carolina-abortio... [3] https://thehill.com/blogs/blog-briefing-room/news/577876-okl... [4] https://www.pbs.org/newshour/show/the-increasing-risk-of-cri...