12 weeks is an important milestone in the development of the fetus. Mothers need to go for a pregnancy check-up at this time to have an ultrasound and do the necessary tests to assess the development of the fetus, calculate the exact gestational age as well as the expected date of birth. At the same time, through the ultrasound, the mother will see the image of the baby.

The 12-week-old fetus is an extremely important milestone in the development process. At this time, mothers need to go for a pregnancy check-up to have an ultrasound and do the necessary tests to assess the development of the fetus, calculate the exact gestational age as well as the expected date of birth. At the same time, through 4D ultrasound, the mother will see the image of the baby.

PAPP-A plays many important roles in the development of the embryo, especially helping the growth and development of the placenta, controlling the development of the fetus due to its function of regulating the absorption of amino acids and glucose by young cells (through the release of IGF factor), in addition, PAPP-A helps protect the fetus from the mother's immune system. So is a low PAPP-A concentration in the Double test a cause for concern?