Not sure which week?
Enter your last period or due date and we show your week, every check-up window and your leave dates.
Trimester 1: weeks 4 to 12
- Week 4Next: Routine first blood tests
- Week 5Next: Routine first blood tests
- Week 6Routine first blood tests
- Week 7Routine first blood tests
- Week 8First antenatal visit and dating scan
- Week 9First antenatal visit and dating scan
- Week 10First antenatal visit and dating scan
- Week 11First trimester screening (optional)
- Week 12First trimester screening (optional)
Trimester 2: weeks 13 to 27
- Week 13First trimester screening (optional)
- Week 14First trimester screening (optional)
- Week 15Next: Detailed (anomaly) scan
- Week 16Next: Detailed (anomaly) scan
- Week 17Next: Detailed (anomaly) scan
- Week 18Detailed (anomaly) scan
- Week 19Detailed (anomaly) scan
- Week 20Detailed (anomaly) scan
- Week 21Detailed (anomaly) scan
- Week 22Detailed (anomaly) scan
- Week 23Next: Gestational diabetes screen (OGTT)
- Week 24Gestational diabetes screen (OGTT)
- Week 25Gestational diabetes screen (OGTT)
- Week 26Gestational diabetes screen (OGTT)
- Week 27Gestational diabetes screen (OGTT)
Trimester 3: weeks 28 to 42
- Week 28Growth scan
- Week 29Growth scan
- Week 30Growth scan
- Week 31Growth scan
- Week 32Growth scan
- Week 33Check-ups every two weeks
- Week 34Check-ups every two weeks
- Week 35Group B Strep swab
- Week 36Group B Strep swab
- Week 37Full term
- Week 38Full term
- Week 39Full term
- Week 40Full term
- Week 41Past the due date
- Week 42Past the due date
Typical windows from HealthHub, KKH and NUH, and baby sizes from NHS. Your doctor decides your own schedule.