Privacy Policy

Last updated: May 2026

The short version

We don't collect personal information. No name, no email, no account. The calculators run in your browser — the dates and numbers you type never leave your device. We use Google Analytics to see aggregate traffic. We show Google AdSense ads. That's the gist of it.

What Google Analytics does

It counts page views and sessions using cookies. We see things like "500 people used the ovulation calculator today." We don't see who you are, and we can't connect any data back to a real person.

What Google AdSense does

AdSense may use cookies to show ads relevant to you, based on your browsing history across other sites. This is handled entirely by Google — we don't have access to that data. Third-party vendors, including Google, use cookies to serve ads based on a user's prior visits to this site and other sites. You can opt out at adssettings.google.com.

Language preference

We store your chosen language in your browser's localStorage so the site remembers it next visit. It never leaves your device.

Your rights (GDPR etc.)

If you're in the EU or another region with privacy laws, you have rights: access, deletion, objection to processing. Since we don't collect personal data, there's not much to exercise these against — but if you have a concern, email us at hello@belly-bell.com.

Changes to this policy

If we change something material, we'll update the date at the top. We won't send you an email about it because we don't have your email.