For health, parenting & family planning websites: the most complete pregnancy and ovulation calculator plugin for WordPress!

WP Pregnancy & Ovulation Calculator by Belov is a plugin and a marketing tool that helps you engage visitors on health and family planning websites.

This plugin turns your WordPress site into a helpful resource for expectant parents and couples planning a family. Whether you run a parenting blog, a women’s health clinic website, or a fertility support platform, the WP Pregnancy & Ovulation Calculator will keep your visitors coming back.

Having a pregnancy or ovulation calculator on your website is an absolute must if your business is in the maternal health, parenting, or family planning space. Your visitors will love the opportunity to track due dates, pregnancy milestones, and fertile windows right on your site. Make your service stand out and get more leads!

FIVE PREGNANCY CALCULATION METHODS

No two pregnancies are the same, and neither should your calculator be. WP Pregnancy & Ovulation Calculator offers five distinct methods to ensure every visitor gets the most accurate results:

Due Date Calculator — Estimate the due date based on the last menstrual period
Last Period Calculator — Calculate the last period date from an estimated due date
Conception Date Calculator — Find out the conception date and other key pregnancy milestones
Ultrasound Due Date Calculator — Determine due dates using ultrasound measurements
IVF Pregnancy Calculator — Special calculations for pregnancies conceived via IVF

OVULATION & FERTILITY TRACKING

Help your visitors plan ahead with precise ovulation and fertility window calculations. The ovulation calendar displays fertile days, ovulation dates, and the best times to conceive — all based on scientifically recognized cycle-length formulas.

SCIENCE BEHIND THE CALCULATIONS

Pregnancy tracking involves many variables — last menstrual period, cycle length, ultrasound data, and more. Doing those calculations manually is impractical and error-prone.

Our calculator uses Naegele’s rule and other standard obstetric formulas trusted by healthcare professionals worldwide. The results include estimated due dates, trimester breakdowns, and week-by-week pregnancy milestones — giving your visitors a comprehensive view of their pregnancy journey.

HOW IT WORKS

WP Pregnancy & Ovulation Calculator gives you a shortcode to place on any page, post, or widget. Put it where it catches the most attention!

Dates, methods, milestones: the calculator covers everything

Once installed, you get an intuitive settings panel in your WordPress admin area. Configure the calculation method, date formats, result display, and styling — all in one place. Generate your shortcode and paste it anywhere on your site.

Flexible date formats

The plugin supports multiple date formats (MM/DD/YYYY, DD/MM/YYYY, and more) to suit your audience worldwide. No confusion, no manual conversion needed.

Increasing screentime

A pregnancy calculator is one of the most engaging features you can offer. Expectant parents can’t resist checking their due dates, tracking week-by-week progress, and exploring fertility windows. Keep them on your site longer!

Handy & user-friendly

The calculator displays results instantly after submission — clear, visual, and beautifully formatted. Week-by-week pregnancy timelines, trimester highlights, and ovulation calendars are presented in an intuitive layout that visitors love.

BOOST YOUR HEALTH & PARENTING WEBSITE

Running a WordPress site for expectant parents, fertility clinics, or wellness professionals? WP Pregnancy & Ovulation Calculator by Belov is the easiest way to capture attention and personalize the experience.

Interactive tools hold attention like nothing else! Your site visitors will spend more time engaging with the calculator and will be much more likely to convert into clients or subscribers.

Personalize user experience for your visitors and grow your health & parenting platform!

MAKE IT YOUR OWN

Styling

The plugin lets you change interface colors to match your website’s design. Use the built-in color picker to adjust the primary and secondary colors. The Pro version provides even more flexibility with advanced color schemes, custom layouts, and complete design control.

Responsive on all devices

The calculator is fully optimized for mobile, tablet, and desktop. Your visitors get a seamless experience regardless of their device — no pinching, zooming, or horizontal scrolling.

PRO EDITION

Advanced features, email marketing integrations, and a powerful admin dashboard: make the most of WP Pregnancy & Ovulation Calculator!

Unlimited calculators

Create as many calculator instances as you need — different pages, different settings, different styles. Perfect for multi-topic health websites.

PDF results & email templates

Let your visitors download their pregnancy results as a beautifully formatted PDF or receive them via email. Customize the templates with your branding, logo, and message.

Optimize your marketing

The Pro version has excellent integrations with popular marketing services:

Mailchimp
Collect emails, build your subscriber list, and run targeted campaigns.
HubSpot
Sync contacts and nurture leads with automated marketing workflows.
Kit (ConvertKit)
Grow your email list with seamless creator-focused integration.
Zapier & Make
Connect to 5,000+ apps and automate your business processes.

More integrations are coming soon!

Other Pro features

Improve user experience with a fully enhanced toolkit:

Custom labels & translations for every field
Advanced color schemes and layouts
Google reCAPTCHA integration
CSV export for data analysis
Entries management dashboard
Priority support

And much more to elevate your website.

WHO IS THIS PLUGIN FOR?

Health & Wellness Websites — Provide valuable pregnancy and ovulation tracking tools
Parenting Blogs — Enhance your content with interactive family planning features
Fertility Clinics & OB/GYN Sites — Offer patients accurate due date and ovulation estimates
Family Planning Platforms — Support users on their journey to parenthood
Doulas & Midwives — Give clients a handy tool right on your website

Try WP Pregnancy & Ovulation Calculator today and give your visitors a truly helpful family planning tool!

TRANSLATIONS

English: default, always included.

Note: The plugin is localized/translateable by default. For translating we recommend the awesome plugin Loco Translate.