It’s a special moment for every expectant mother when she gets to see a life growing inside her. Doctors advise a mother to undergo at least five scans during pregnancy to ascertain the growth and development of the baby for both normal and high-risk cases. It’s a special moment for every expectant mother when she gets to see a life growing inside her. Doctors advise a mother to undergo at least five scans during pregnancy to ascertain the growth and development of the baby for both normal and high-risk cases.