Week 1: The Beginning of Your Journey
You are on your period this week. Your body is in its normal menstrual cycle, preparing to release an egg in the coming weeks. Energy levels may be lower than usual.
Your baby at week 1
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Size of a Not yet conceived
Baby Development
Week 1 is counted from the first day of your last menstrual period, so conception has not yet occurred. Your body is preparing by shedding the uterine lining and beginning to develop a new egg. Hormones are signalling your ovaries to prepare a mature follicle. This week is the starting point for calculating your estimated due date.
Week 1 Highlight: Your body is already preparing for the incredible journey ahead, even before conception occurs!
Common Symptoms
Tips for Week 1
Start taking a folic acid supplement (at least 400mcg daily) if you haven't already.
Track your menstrual cycle to identify your fertile window.
Schedule a preconception check-up with your doctor or clinic.
Avoid alcohol, smoking, and recreational drugs.
South Africa Specific Info
If you are planning a pregnancy, visit your local public clinic or GP for a preconception check-up. In South Africa, folic acid supplements are available at pharmacies like Clicks and Dis-Chem. Public sector clinics offer free reproductive health services.
All Pregnancy Weeks
Frequently Asked Questions
About the Author
Due Date Calculator SA Editorial Team
Our content is reviewed by healthcare professionals familiar with South African maternal health practices. We combine evidence-based medical information with local knowledge to support South African mums throughout their pregnancy journey. Our team includes contributors with backgrounds in midwifery, obstetrics, and maternal health education.
Last reviewed: February 2026