Contact BumpDate

BumpDate is a small project, so the fastest way to reach us is email. We keep things simple on purpose: no contact form, no account, just a direct line to the people who maintain the site.

Questions, suggestions, or a correction: hello@bumpdate.xyz

When you write, it helps to mention which calculator and which date you used, and what looked wrong. That lets us reproduce the issue and fix it quickly. Screenshots of the problem are welcome.

We read every message but may not reply to each one. For anything medical — including interpreting a result, a symptom, or a due date — please ask your doctor or midwife. We cannot give medical advice, and no email exchange creates a patient–provider relationship.

For site or technical issues (a calculator that will not load, a broken link, or a wrong number), email the same address and we will look into it. Because the tools run in your browser, a quick refresh or a different browser resolves most display glitches.