A few months after pregnancy do four-dimensional

A few months after pregnancy do four-dimensional color ultrasound? After pregnancy do four-dimensional color ultrasound, generally recommended pregnancy 22 weeks to 26 weeks do, generally do four-dimensional color ultrasound 22 weeks later can do, at the same time recommended 28 weeks to 32 weeks do three-dimensional color ultrasound, mainly screening baby's heart malformation. Generally, calcium tablets should be added after four months of pregnancy to strengthen the diet containing iron and calcium.