Baby Due in May 2026: Pregnancy Timeline and Planning Guide

Last reviewed: July 2026

If your baby is due in May 2026, this page gives you a simple, UK-focused pregnancy timeline with estimated trimester dates, scan windows, and practical seasonal reminders.

This page is for general pregnancy planning and date guidance only. It is not medical advice, diagnosis, or treatment. Pregnancy dates are estimates and can change after a scan or advice from your midwife, GP, or maternity team. Always speak to a qualified healthcare professional if you have symptoms, concerns, or questions about your pregnancy.

Want exact dates for your pregnancy?

These dates are approximations for a typical mid-month due date. To see your precise pregnancy week, trimester dates, and personalised week-by-week guide, use our calculator.

Calculate My Exact Due Date

May 2026 Overview

A baby due in May 2026 means you will likely have conceived around August 2025.

In the UK, a May due date means welcoming your baby in the Spring. Preparing for a newborn requires slightly different approaches depending on the season, especially regarding clothing and room temperature.

Preparing for a Spring Baby

Spring weather in the UK is famously unpredictable. Layers are essential so you can add or remove clothing easily.
Include a mix of short-sleeved and long-sleeved bodysuits in your hospital bag.
You'll likely enjoy your first pram walks in mild weather, but always carry a lightweight blanket and a rain cover.
As temperatures slowly rise, keep an eye on room temperature to ensure it stays between a safe 16-20°C.

Approximate Timeline & Scans

Note: These windows assume a due date in the middle of May. Your actual scan dates will vary depending on your exact due date and your local NHS trust's availability.

First Trimester

Until approx. November 2025

You will have your booking appointment (usually between 8 and 10 weeks). You will also be offered your first ultrasound scan.

Dating Scan Window: Roughly between October and November 2025

Second Trimester

From approx. November to February 2026

Many women find their energy returns during this trimester. You will be offered the anomaly scan, which is a detailed check of the baby's physical development.

Anomaly Scan Window: Roughly between December and January 2026

Third Trimester

From approx. February 2026 onwards

The final stretch leading up to May 2026. You'll have more frequent midwife appointments, discuss your birth preferences, and start maternity leave.

Practical Preparation

Maternity Leave

You must tell your employer about your pregnancy and the date you want to start your Statutory Maternity Leave at least 15 weeks before the beginning of the week your baby is due. This is usually around the time you receive your MATB1 form (around 20 weeks).

Hospital Bag

It's a good idea to have your hospital bag packed by the time you are 36 weeks pregnant. Since you are due in May, factor this timing into your planning so you are ready a month early.