Privacy Policy & Cookie Disclosures

1. Introduction & Data Controller Details

This Privacy Policy describes the policies and procedures of Pregnancy Calculator (“we,” “us,” or “our”) regarding the collection, use, and disclosure of technical and session information when you use https://pregnancycalculator.app (the “Website” or “Service”).

For the purposes of the General Data Protection Regulation (GDPR) and international data privacy frameworks, the Data Controller is:

• Entity: Pregnancy Calculator Health Tools & Clinical Informatics Team
• Designated Privacy Contact: privacy@pregnancycalculator.app
• Response Window: We acknowledge and respond to all verified consumer and data subject inquiries within thirty (30) calendar days at zero charge.

2. Google AdSense, DoubleClick & Advertising Policy Disclosures

A. Third-Party Ad Networks & Centralized Opt-Out Portals

In addition to Google, certified third-party ad networks may serve advertisements and measure ad performance on this site. You can opt out of third-party vendor cookies for personalized advertising by visiting any of the following recognized industry opt-out portals:

• Digital Advertising Alliance (DAA - United States): https://optout.aboutads.info
• Network Advertising Initiative (NAI): https://optout.networkadvertising.org
• European Interactive Digital Advertising Alliance (EDAA - EU/EEA/UK): https://www.youronlinechoices.eu
• Digital Advertising Alliance of Canada (DAAC - Canada): https://youradchoices.ca/en/tools
• Australian Digital Advertising Alliance (ADAA - Australia): https://www.youronlinechoices.com.au

B. Google EU User Consent Policy Compliance (EEA, UK & Switzerland)

For visitors accessing our Website from the European Economic Area (EEA), United Kingdom (UK), or Switzerland, we comply fully with Google's EU User Consent Policy. Cookies for personalized advertising are only activated when affirmative, informed consent is granted. Users may adjust or revoke their preferences at any time via browser cookie settings.

C. Web Beacons, Pixels & Action Tags

Our advertising partners may utilize web beacons (single-pixel GIFs) in conjunction with cookies to verify ad impressions, prevent click fraud, and evaluate aggregate ad placement efficacy. Web beacons do not capture personally identifiable health data or your pregnancy dates.

3. Complete Cookie Policy & Classification Table

Cookies and local browser storage are utilized on Pregnancy Calculator according to strict functional necessity and applicable consent standards:

4. Information We Collect & Zero Personal Health Storage

A. Real-Time Calculator Inputs (Client-Side Only)

When you input the date of your last menstrual period (LMP), estimated conception date, cycle length variation, or ultrasound gestational age, all mathematical calculations execute exclusively inside your local device's browser memory. Your specific menstrual dates, pregnancy milestones, and personal health metrics are never logged to our servers or transmitted to remote databases.

B. Automatically Collected Technical Logs

Standard internet transmission protocols generate transient technical logs when your device connects to our hosting servers:

• Anonymized IP Addresses: Used ephemerally for geolocation routing, edge caching, and DDoS defense.
• Device & Browser Strings: Browser version, operating system, and viewport dimensions for correct CSS layout rendering.
• Server Diagnostics: HTTP status codes, request timestamps, and referrer URLs for site reliability monitoring.

5. General Data Protection Regulation (GDPR) — EU & UK Rights

Visitors located in the European Economic Area (EEA), United Kingdom (UK), or Switzerland are protected by statutory rights under the EU GDPR (Regulation 2016/679) and UK Data Protection Act 2018:

• Legal Bases for Processing (Art. 6): Essential operations (security and page delivery) rely on Legitimate Interests (Art. 6(1)(f)). Non-essential advertising and analytics cookies rely on explicit Consent (Art. 6(1)(a)).
• Right of Access (Art. 15): Request verification of any personal data processed.
• Right to Rectification (Art. 16): Request correction of inaccurate information.
• Right to Erasure (Art. 17): Request deletion of personal records (“Right to be Forgotten”).
• Right to Restriction (Art. 18) & Portability (Art. 20): Restrict processing or receive data in a standard machine-readable format.
• Right to Object (Art. 21): Object to data processing based on legitimate interests or direct marketing.
• Right to Withdraw Consent: Revoke cookie consent at any time without penalty.
• Right to Lodge a Complaint: Lodge a formal grievance with your national Data Protection Authority or the UK Information Commissioner's Office (ICO).

6. California Consumer Privacy Act (CCPA) & CPRA Disclosures

Under the California Consumer Privacy Act of 2018 as amended by the California Privacy Rights Act of 2020 (“CCPA/CPRA”), California residents receive specific statutory protections:

• Categories Collected: Online identifiers (anonymized IP address, device cookies) and internet activity (pageviews). Zero protected medical data, sensitive reproductive health records, or sensitive personal information (SPI) is collected.
• Do Not Sell or Share Notice: We do not sell personal data for monetary compensation. To opt out of third-party cookie sharing for cross-context behavioral advertising, visit optout.aboutads.info or enable the Global Privacy Control (GPC) browser signal, which we automatically honor.
• Consumer Rights: Right to Know, Right to Delete, Right to Correct, and Right to Non-Discrimination for exercising privacy rights.
• Authorized Agents: Authorized representatives may submit requests with verified written permission.

7. Children's Online Privacy Protection Act (COPPA)

Pregnancy Calculator is intended for a general audience and does not knowingly collect personal identifiable information from children under 13 years of age (or under 16 where applicable). If you believe a minor has submitted personal information, please contact privacy@pregnancycalculator.app for immediate deletion.

8. Editorial Integrity & Advertising Independence

Advertisements delivered by Google AdSense displayed on this website are strictly demarcated with clear “Advertisement” or “Ad” identifiers. Advertising partnerships do not influence our clinical formulas (Naegele's Rule, Mittendorf-Williams adjustments, ACOG dating standards), editorial guidelines, or scientific medical citations.

9. Security Safeguards & Data Retention

We implement industry-standard technical protections including TLS 1.3 encryption in transit, strict Content Security Policies (CSP), HTTP Strict Transport Security (HSTS), and isolated client-side computation. Standard CDN server access logs are automatically rotated and purged within 30 days.

10. Contact Information & Privacy Requests

To submit a formal privacy rights request (GDPR, CCPA/CPRA) or for questions regarding our Google AdSense compliance: