Week 4

Trimester 1

Baby's Development

Your baby is a poppy seed.

Hello, Little One — Implantation is complete and your body is producing hCG, the hormone a home pregnancy test can now detect. Tiny layers of cells are already differentiating into what will become your baby's brain, spine, and heart.

Your Symptoms

Missed period
Tender breasts
Fatigue
Mild nausea

NHS Appointments

Contact your GP or local maternity service to register your pregnancy and book your 'booking' appointment.

Tip of the Week

A positive home pregnancy test is very reliable. You don't usually need a GP to confirm it.

Track Your Due Date

Keep track of your pregnancy milestones, NHS scans, and countdown to your due date.

Go to Tracker

NHS Resources

Find trusted information on financial support, antenatal classes, and local maternity services.

View Resources