Week 3
Trimester 1
Baby's Development
Your baby is a microscopic grain of sand.
The Meeting — Conception has occurred, and a single fertilised cell is dividing rapidly as it travels toward your uterus. This blastocyst — a tiny sphere of potential — is beginning to nestle into your uterine lining by the end of this week.
Your Symptoms
- Possible light spotting (implantation)
- Mild cramping
- Heightened sense of smell
NHS Appointments
None yet. You might not even know you're pregnant for another week or two!
Tip of the Week
Avoid alcohol and smoking as your baby begins its first critical stages of development.
Track Your Due Date
Keep track of your pregnancy milestones, NHS scans, and countdown to your due date.
Go to TrackerNHS Resources
Find trusted information on financial support, antenatal classes, and local maternity services.
View Resources