More broadly, it's not safe to store any digital data that an authority can _willfully misinterpret_ to use against you. Miscarriage? That's an abortion. Googling for a source of Methotrexate for your Lupus? Intent to supply abortion drug. Calendar entry for an Antifa protest that became violent? Intent.
Me and my girlfriend use period timing. We accept the risk because we would eventually like children, now wouldn't be ideal but wouldn't be catastrophic either. Both of us agree that regardless of the law we wouldn't get an abortion anyway.
Risk isn't black and white, you have to actually measure things and not be ideological about it.
It is not.
Thus, no.