1. Introduction
Welcome to PeriodCalculator.com ("we," "us," "our," or "the Site"). We are committed to protecting your privacy and being transparent about how we handle information when you use our website.
This Privacy Policy applies to all pages and tools on PeriodCalculator.com, including our period calculator, ovulation calculator, period tracker, safe period calculator, due date calculator, and all blog content.
This policy describes:
- What information we collect when you visit our site.
- How we use that information.
- How we use cookies and similar technologies.
- How Google AdSense and advertising disclosures apply when advertising features are enabled.
- Your rights regarding your personal information.
- How to contact us with privacy-related questions.
If you do not agree with this Privacy Policy, please discontinue use of our website.
2. Information We Collect
We collect two types of information:
2.1 Information You Provide Directly
We collect information you voluntarily provide when you use the following features:
Contact Form Submissions
When you submit our contact form, we collect:
- Your name.
- Your email address.
- The subject of your inquiry.
- The content of your message.
This information is used solely to respond to your inquiry and is not used for marketing purposes without your explicit consent.
Calculator Inputs
Our calculators require you to enter dates and cycle-length information. Important: this data is processed entirely in your browser on the client side. We confirmed this against the current implementation of our calculator components, which do not send menstrual or fertility inputs to a PeriodCalculator.com API.
We do not transmit, store, or log any health data you enter into our calculators on our servers. Your menstrual health data stays on your device unless you choose to store tracking information locally in your own browser.
2.2 Information Collected Automatically
When you visit PeriodCalculator.com, we and our third-party service providers may automatically collect certain technical information, including:
- IP address, anonymized where possible.
- Browser type and version.
- Operating system.
- Referring URL.
- Pages visited on our site.
- Time and date of your visit.
- Time spent on each page.
- Device type such as desktop, mobile, or tablet.
This information is collected through cookies and similar tracking technologies and is used for site analytics, performance measurement, advertising, fraud prevention, and troubleshooting.
3. How We Use Your Information
We use the information we collect for the following purposes:
3.1 To Operate and Improve the Site
- To provide and maintain our calculators, blog content, and support features.
- To analyze how visitors use our site when analytics tooling is enabled so we can improve design, navigation, and content.
- To diagnose and fix technical problems.
- To understand which topics and tools are most useful to our visitors.
3.2 To Respond to Your Inquiries
- To read and respond to messages submitted through our contact form.
- To send you an automated confirmation email when you submit a contact form.
- To keep a limited record of prior correspondence where needed for follow-up support.
3.3 To Display Advertising
- If enabled, to serve relevant advertisements through Google AdSense.
- If enabled, to measure advertising effectiveness, impressions, and engagement.
- To support the operation of our free tools and medically reviewed health content when ad-supported publishing is active.
3.4 Legal Compliance
- To comply with applicable laws and regulations.
- To protect the rights, property, or safety of PeriodCalculator.com, our users, or others.
We do not sell your personal information to third parties. We do not use your information for purposes other than those described in this Privacy Policy without your consent.
5. Google AdSense and Advertising
5.1 Use of Google AdSense
PeriodCalculator.com may use Google AdSense, a web advertising service provided by Google LLC ("Google"), to display advertisements on our website.
When Google AdSense is enabled, Google may use cookies and similar tracking technologies to serve ads based on your prior visits to our website and other websites on the internet.
5.2 How Google AdSense Works
When Google AdSense is enabled and you visit PeriodCalculator.com:
- Google AdSense may place cookies on your device.
- These cookies allow Google to recognize your browser across visits.
- Google uses this information to serve ads that may be relevant to your interests.
- Google may also use this information to measure advertising effectiveness.
5.3 DoubleClick Cookie
If Google AdSense is enabled on PeriodCalculator.com, Google may use the DoubleClick cookie to serve ads across its advertising network, including on this site. The DoubleClick cookie enables Google and its partners to serve ads based on your visits to this and other websites.
5.4 Personalized vs. Non-Personalized Ads
When Google AdSense is enabled, Google may serve personalized advertisements based on your browsing history and interests. If you prefer not to receive personalized advertising, you can opt out using the methods described below.
5.5 How to Opt Out of Personalized Advertising
You have several options to control personalized advertising:
- Option 1 — Google Ad Settings: https://www.google.com/settings/ads
- Option 2 — Google's "Why this ad?" controls available within supported ads.
- Option 3 — NAI Opt-Out Tool: https://optout.networkadvertising.org
- Option 4 — DAA Opt-Out Tool: https://optout.aboutads.info
- Option 5 — Browser settings to disable third-party cookies.
If you disable personalized advertising, you may still see ads, but they will be less tailored to your browsing behavior.
5.6 Google's Privacy Policy
Google's use of advertising cookies is governed by Google's Privacy Policy: https://policies.google.com/privacy
For more information about how Google uses data when you use our site, visit https://policies.google.com/technologies/partner-sites.
5.7 We Do Not Control Ad Content
If we use Google AdSense to display advertisements, we do not control the specific ads that are shown to you. Ad content is determined by Google's algorithms based on browsing history, contextual signals, and other factors. If you see an advertisement that you believe is inappropriate or misleading, you can use Google's ad controls to report it.
5.8 Advertising Revenue Disclosure
If PeriodCalculator.com displays advertisements through Google AdSense, that revenue helps us maintain our free tools and produce medically reviewed health content. Editorial decisions remain independent of advertising relationships, and we do not accept payment to feature specific products, treatments, or medical opinions in our health content.
6. Third-Party Services
PeriodCalculator.com may use the following third-party services as specific site features are enabled. Each service has its own privacy policy that governs how it handles data.
6.1 Google Analytics
Purpose: Website traffic analysis and user behavior insights when analytics is enabled.
Data collected: Anonymized usage data, page views, session duration, and device type when enabled.
Privacy policy: https://policies.google.com/privacy
Opt-out: https://tools.google.com/dlpage/gaoptout
6.2 Google AdSense
Purpose: Displaying advertisements when ad-supported publishing is enabled.
Data collected: Browsing behavior, ad interactions, device and browser identifiers when enabled.
Privacy policy: https://policies.google.com/privacy
Opt-out: https://www.google.com/settings/ads
6.3 Email Service Infrastructure
Purpose: Processing contact form submissions and sending automated confirmation emails.
Data collected: Name, email address, subject line, and message content.
Data retention: Messages retained for up to 12 months.
We do not use Facebook Pixel, TikTok Pixel, or other social-media tracking pixels on this website. We also do not share your personal data with third parties for their own marketing purposes.
7. Data Retention
We retain different types of data for different periods:
Contact Form Data
Messages submitted through our contact form are retained for up to 12 months from the date of submission, after which they are permanently deleted when no longer needed for operational, legal, or support purposes.
Analytics Data
Anonymized analytics data collected through Google Analytics is retained according to Google's data retention settings, which we configure to 14 months where that service is in use.
Calculator Data
Health data entered into our calculators is processed entirely in your browser and is never transmitted to or stored on our servers. We retain no calculator input data.
Cookie Data
Cookies placed on your device by our site or third-party services expire according to the timeframes described in Section 4.2. When data is no longer needed, we delete it securely or allow it to expire according to the provider's configuration.
8. Data Security
We take reasonable technical and organizational measures to protect your information from unauthorized access, disclosure, alteration, or destruction. These measures include:
- HTTPS encryption for data transmitted between your browser and our website.
- Secure handling of contact form submissions and mailbox access.
- Limited access to personal data for team members who need it to respond to inquiries.
- Regular review of our data-handling practices.
However, no method of transmission over the internet or method of electronic storage is 100% secure. While we strive to use commercially acceptable means to protect your personal information, we cannot guarantee absolute security.
If you believe your information has been compromised, please contact us immediately at contact@aigotowork.work.
9. Children's Privacy
PeriodCalculator.com is not directed to children under the age of 13, and we do not knowingly collect personal information from children under 13.
While our content relates to menstrual health, which may be relevant to adolescents, our website is designed for general audiences and does not specifically target users under 13.
If you are a parent or guardian and believe that your child under the age of 13 has provided us with personal information, please contact us at contact@aigotowork.work. We will take steps to delete such information promptly.
If you are between 13 and 18 years of age, we encourage you to review this Privacy Policy with a parent or guardian before using our website.
We comply with the Children's Online Privacy Protection Act (COPPA) and do not knowingly collect, use, or disclose personal information from children under 13 without verifiable parental consent.
10. Your Privacy Rights
Depending on your location, you may have certain rights regarding your personal information. These rights may include:
- Right to access the personal information we hold about you.
- Right to correction of inaccurate personal information.
- Right to deletion, subject to applicable legal exceptions.
- Right to restrict processing in certain circumstances.
- Right to data portability where technically feasible.
- Right to object to certain processing activities.
- Right to withdraw consent where processing is based on consent.
To exercise any of these rights, please contact us at:
We will respond to your request within 30 days where required. We may need to verify your identity before processing your request. Some rights may be limited where we have a legitimate interest or a legal obligation to continue processing data.
11. GDPR — Rights for EU and EEA Users
If you are located in the European Union or European Economic Area, the General Data Protection Regulation (GDPR) provides you with additional rights and protections.
11.1 Legal Basis for Processing
Legitimate Interests (Article 6(1)(f))
We process technical data such as IP addresses and usage data for the legitimate interest of operating, securing, and improving our website.
Consent (Article 6(1)(a))
We process advertising cookies and analytics cookies based on your consent where applicable. You may withdraw this consent at any time by changing browser settings or clearing cookies.
Contract Performance (Article 6(1)(b))
We process contact form data for the purpose of responding to your inquiry and taking pre-contractual steps where you request information or support.
11.2 Your GDPR Rights
- Right of access (Article 15).
- Right to rectification (Article 16).
- Right to erasure or right to be forgotten (Article 17).
- Right to restriction of processing (Article 18).
- Right to data portability (Article 20).
- Right to object (Article 21).
- Rights related to automated decision-making (Article 22).
11.3 International Data Transfers
PeriodCalculator.com is operated from outside the EU and EEA. If you are located in the EU or EEA, your personal data may be transferred to and processed in countries outside the EU or EEA, including the United States.
When we transfer data outside the EU or EEA, we rely on appropriate safeguards, including Standard Contractual Clauses where applicable. Google's data transfers are governed by Google's own compliance mechanisms. For more information, visit https://policies.google.com/privacy/frameworks.
11.4 Right to Lodge a Complaint
If you believe we have not handled your personal data in accordance with the GDPR, you have the right to lodge a complaint with your local data protection authority. To find your local authority, visit https://edpb.europa.eu/about-edpb/about-edpb/members_en.
11.5 Contact for GDPR Inquiries
For GDPR-related inquiries, please contact us at contact@aigotowork.work.
12. CCPA — Rights for California Residents
If you are a resident of California, the California Consumer Privacy Act (CCPA) provides you with specific rights regarding your personal information.
12.1 Your CCPA Rights
Right to Know
You have the right to request that we disclose what personal information we have collected about you, the categories of sources, the business purpose for collecting it, and the categories of third parties with whom we share it.
Right to Delete
You have the right to request that we delete personal information we have collected from you, subject to certain exceptions.
Right to Opt Out of Sale
We do not sell your personal information to third parties. Therefore, there is no need to opt out of a sale of personal information.
Right to Non-Discrimination
We will not discriminate against you for exercising any of your CCPA rights. We will not deny services, charge different prices, or provide a different level of service because you exercised your privacy rights.
12.2 How to Submit a CCPA Request
To submit a request under the CCPA, please contact us at:
Subject line: "CCPA Privacy Request"
We will respond to verifiable consumer requests within 45 days. We may extend this period by an additional 45 days when reasonably necessary, with prior notice.
12.3 Authorized Agent
You may designate an authorized agent to submit a CCPA request on your behalf. To do so, please provide written authorization signed by you or a valid power of attorney.
12.4 California Shine the Light Law
California Civil Code Section 1798.83 permits California residents to request information regarding the disclosure of personal information to third parties for direct marketing purposes. We do not disclose personal information to third parties for their direct marketing purposes.
13. Changes to This Privacy Policy
We may update this Privacy Policy from time to time to reflect changes in our practices, technology, legal requirements, or other factors.
When we make changes, we will:
- Update the "Last Updated" date at the top of this page.
- Post the revised Privacy Policy on this page.
- For significant changes, we may provide additional notice where appropriate.
We encourage you to review this Privacy Policy periodically to stay informed about how we are protecting your information.
Your continued use of PeriodCalculator.com after any changes to this Privacy Policy constitutes your acceptance of the updated policy. Previous versions are available upon request by contacting us at contact@aigotowork.work.
14. Contact Us
If you have any questions, concerns, or requests regarding this Privacy Policy or our data practices, please contact us:
PeriodCalculator.com
contact@aigotowork.work
We aim to respond to all privacy-related inquiries within 5 business days.
For GDPR-related requests, we will respond within 30 days where required by law.
For CCPA-related requests, we will respond within 45 days where required by law.