Privacy
Your dates stay on your device
We built PregDateBase so sticky-note math does not require an account. Calculator inputs are processed in your browser. We do not sell a dossier of your pregnancy dates.
Last updated: July 17, 2026
What stays local
- Transfer dates, LMP, EDD, ovulation dates, cycle length, and similar calculator inputs
- Optional “remember inputs” values stored in localStorage on your device only
- Results computed in the browser (Worker when available) — not uploaded to a clinic EMR
What may leave the device
- Aggregate analytics (page views, country, device type) when configured
- Advertising partners when ads are enabled — they have their own policies
- Email you send us voluntarily if you contact support
Those third parties publish their own privacy policies. We use them for site operation and monetization — not to build a fertility profile for sale.