What necessary prenatal check-ups are required at 28 weeks of pregnancy? The 28th week of pregnancy is the period when pregnant women are most susceptible to complications and children have deformities. Comprehensive and systematic prenatal examinations and related preventive measures are required. This article will elaborate on maternal blood pressure, blood sugar, amniotic fluid, fetal heart rate monitoring and other aspects. Blood pressure of pregnant women Checking blood pressure of pregnant women is the most important item during pregnancy check-up