June 12, 2024 mygyno You should aim to commence antenatal care around the 11th to the 13th week of pregnancy. At this point, the growing baby is well-developed to allow a detailed assessment of normality. Virtually every organ is formed by this point, allowing some developmental or genetic abnormalities to be detected this early. This is also the best time to accurately date your pregnancy, giving you the estimated date of delivery, usually abbreviated as EDD.