Gestational age
Abbreviation: GA
Gestational age measures how far along a pregnancy is, counted in weeks and days starting from the first day of your last menstrual period (LMP), even though conception happens about two weeks later. Doctors and midwives use gestational age for all clinical milestones, screening schedules, and due date calculations. At your first antenatal appointment, your doctor will ask for your LMP date and may confirm gestational age with an early ultrasound. Understanding your gestational age helps you track which prenatal tests to book and what developmental changes to expect each week.
What This Means for You
Understanding Gestational age is an important part of your all pregnancy journey. During pregnancy, your care team will use this term regularly. Being familiar with it means you can ask better questions and feel more confident at your antenatal appointments.
Explore our Pregnancy hubGood to Know
In Singapore, your KKH or NUH booking appointment will record gestational age in your antenatal card, and all follow-up scans and blood tests are scheduled based on this number.
Always consult your healthcare provider for personalised advice.
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