Medical review: Dr. Sarah Mitchell, MD · Board-certified OB-GYN with 15+ years of clinical experience · Updated March 17, 2026

Methodology and sources

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Quick Answers

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These resources might help before you reach out.

Before You Email

How to get a faster, more useful reply

The fastest path is often to include the exact context in your first message. If your question is about a period estimate, ovulation forecast, due date result, or tracker export, mention the tool you used and the inputs you entered. That makes it much easier for us to understand whether the issue is a calculation question, a content explanation gap, or a technical bug.

If your question is educational rather than technical, you may get your answer faster by starting with the FAQ page, the blog, or the dedicated tool pages for the period calculator, ovulation calculator, due date calculator, and period tracker. We keep those pages updated so readers can self-serve common questions without waiting on email.

When you do contact us, avoid sending highly sensitive medical documents, test results, or private identifiers unless they are truly necessary for your own email record. This site is an educational resource, not a medical practice or patient portal.

Best Practices

What to include in your message

If a calculator result looks off, include the exact tool you used, the date inputs, your average cycle length, and what you expected to see.

If you found a content issue, paste the page URL and quote the sentence or section that looks unclear or inaccurate.

If you are reporting a technical bug, tell us your device, browser, and what happened before the issue appeared.

The contact form on this page opens a prefilled email draft in your default mail app. You can review, edit, or cancel that draft before sending anything.

What Happens Next

How the contact process works on this site

This website is built as a static health resource, so the on-page contact form does not submit directly into a hidden support system. Instead, it validates your draft locally in the browser and opens your default mail client with the message prefilled. That design keeps the flow simple and makes it clear when you are actually sending an email.

Once you send the email, we read it in the same way we read any normal inbox message and reply from the listed addresses on this page. That is why the most helpful contact emails are specific, short, and tied to one clear issue at a time. Questions about calculator logic, editorial accuracy, site bugs, and partnership inquiries are all appropriate. Requests for personal diagnosis, treatment advice, or urgent medical interpretation are not.

If your question is about a result that seems medically concerning, use this site as a planning and education tool only, then speak with a qualified clinician. If your goal is simply to understand why a cycle estimate moved, our guides on period timing, ovulation estimates, and irregular cycles usually answer that more directly than email can.

Medical Disclaimer

Period Calculator is an educational health resource. The information provided on this website, including all calculators, tools, and articles, is intended for general educational purposes only.

This content does not constitute medical advice, diagnosis, or treatment. It should not be used as a substitute for professional medical advice from a qualified healthcare provider.

If you have concerns about your health, please consult a licensed physician or other qualified healthcare professional promptly.