WP Manifestindependent plugin directory
manifest / content / pregnancy-calculator-plugin

Pregnancy Due Date Calculator

Pregnancy due-date calculator with LMP, conception-date and IVF transfer-date methods. Shortcode-only — no header / footer markup, no external CDN dependencies (icons are inline SVG). Use [pregnancy_calculator] in any page or post.

by BabyBrands · github.com/cjbodullo/pregnancy-calculator-plugin

★ 0stars

Install

Download source zip No release zip yet

This is the repository archive. It installs, but the folder name will carry the branch suffix and updates will not flow.

Install straight from GitHub with WP-CLI:

wp plugin install https://github.com/cjbodullo/pregnancy-calculator-plugin/archive/refs/heads/master.zip
No built-in updater. New versions won't appear under Dashboard → Updates. Install new releases yourself, or let Git Updater track the repository.
Readme github.com/cjbodullo/pregnancy-calculator-plugin ↗

WordPress shortcode that renders a pregnancy due-date calculator mirroring the standalone nameGeneratorTool pregnancy calculator. Drops cleanly into any page or post — no header / footer markup, no external CDN, no jQuery.

Text domain: pregnancy-calculator-plugin Version: 1.0.0 (PCP_VERSION in the main plugin file).

Requirements

  • WordPress 5.x or newer.
  • PHP 7.4+.

Installation

  1. Copy the pregnancy-calculator-plugin folder into wp-content/plugins/.
  2. In Plugins, activate Pregnancy Due Date Calculator.
  3. Add the shortcode [pregnancy_calculator] to any page or post.

That's it — no settings page, no database tables, no API keys.

Shortcode

[pregnancy_calculator]

Attributes (all optional)

Attribute Default Purpose
title Discover Your Expected Due Date Hero headline (only shown if show_hero="yes").
subtitle Lead paragraph from the standalone tool Hero sub-paragraph.
show_hero yes Toggle the hero section + 280 / 40 / 3 stat trio.
show_info yes Toggle the "How Our Calculator Works" cards (LMP / Conception / IVF explainers).
show_milestones yes Toggle the milestones grid (Week 4-6 → Week 37-40).
show_tips yes Toggle the prenatal-care tips grid.
show_trimesters yes Toggle the trimester guide cards.
max_width 1200px Page max-width (px, %, rem, em, vw).

yes / no are case-insensitive; 1, true, on, y also count as truthy; everything else is treated as no.

Examples

Full page (default):

[pregnancy_calculator]

Just the calculator, no surrounding sections (great for sidebars or product pages):

[pregnancy_calculator show_hero="no" show_info="no" show_milestones="no" show_tips="no" show_trimesters="no"]

Calculator + milestones only, custom hero copy:

[pregnancy_calculator
   title="Your Personalized Pregnancy Timeline"
   subtitle="Pick a method below and we'll do the math."
   show_info="no"
   show_tips="no"
   show_trimesters="no"]

Narrower full layout:

[pregnancy_calculator max_width="960px"]

What you get

  • Three calculation methods: LMP, Conception Date, IVF Transfer (Day 3 or Day 5 blastocyst).
  • Date inputs are capped at today so a visitor can't pick a future date.
  • Results card with due date, countdown ("X days to go" / "Y days overdue" / "Due today!"), current week + day, trimester, days remaining, conception date, and a 0–40 week progress bar.
  • All form state lives inside the shortcode's own DOM tree, so you can drop multiple instances on the same page and they'll behave independently.
  • Inline-SVG icons — no FontAwesome, no Google Fonts, no external requests.

Architecture

Piece Path
Plugin entry pregnancy-calculator-plugin.php
Shortcode markup pcp_render_shortcode()
Date math + UI behaviour assets/js/pregnancy-calculator.js
Styles assets/css/pregnancy-calculator.css (every selector scoped under .pcp-shell)
Icons pcp_icon() (inline SVG)

The CSS uses CSS custom properties on .pcp-shell, so you can repaint the whole tool from your theme without touching the plugin:

.pcp-shell {
    --pcp-teal-deep: #0b4f4f;
    --pcp-teal: #38b2ac;
    --pcp-coral: #ff8a8a;
    --pcp-coral-dark: #f06262;
}

Calculation rules

The same rules as the original nameGeneratorTool calculator:

  • LMP: due = LMP + 280 + (cycle - 28) days; conception = LMP + round(cycle / 2).
  • Conception Date: due = conception + 266; LMP = conception − 14.
  • IVF Day 3: due = transfer + 263; conception = transfer − 3; LMP = conception − 14.
  • IVF Day 5 (blastocyst): due = transfer + 261; conception = transfer − 5; LMP = conception − 14.

This is for estimation only — the in-tool banner makes that explicit.