About Pregnancy Toolkit

Pregnancy Toolkit is a small collection of free pregnancy calculators, a due date estimator, pregnancy week tracker, trimester calculator, conception window estimator, kick counter, contraction timer, due month predictor, and baby name generator, built and maintained by Joe Koppin, a software engineer. It started from a simple goal: give expecting parents a fast, uncluttered way to get these common estimates without an account, a signup form, or a page choked with ads before you can see a single result.

Every calculator here runs entirely client-side. No accounts, no backend processing the dates or names you enter, no database. That’s not a marketing claim, it’s a consequence of what this site actually is: a static export with no server-side application logic at all. A few tools, the kick counter and contraction timer, save their history locally in your browser so it persists between visits, but that data never leaves your device. See the Privacy Policy for the specifics.

Beyond the calculators themselves, the Guides section covers the ideas behind them in more depth: how a due date is actually calculated, where trimester boundaries come from, what kick counting involves, and what timing a contraction actually measures, for when a quick calculator result isn’t enough and you want the underlying explanation. Every guide is written as general education, not medical advice, and none of it is a substitute for guidance from your own healthcare provider; see the Terms of Use for the full disclaimer.

Pregnancy Toolkit is part of the Ten Eleven family of free, no-signup web tools. The site is free to use and ad-supported. If a calculator saved you time, a coffee is always appreciated but never required. Questions, bug reports, or a feature you’d like to see added can go to privacy@pregnancytoolkitonline.com.

Pregnancy Toolkit is an educational and planning resource. It isn’t a medical provider, doesn’t diagnose or treat anything, and isn’t a substitute for professional medical care. If you have any concern about your pregnancy, contact your midwife, doctor, or emergency services, don’t rely on this site instead.