Prevalence of Vitamin D Deficiency in Pregnant Women and Their Fetus in North Jordan

In Jordan, there are few data about the prevalence of hypovitaminosis D in pregnant women and their newborns and factors that affect their levels. Hence, in this study, investigators will : 1. Determine vitamin D levels among newborns born in north Jordan 2. Determine vitamin D levels among pregnant women in north Jordan 3. Study the association between maternal and infants levels of vitamin D 4. Explore the association between maternal and fetal characteristics and maternal and/or fetal vitamin D level 5. Study the effect of low fetal vitamin D on newborn anthropometry 6. Study the effect of maternal vitamin D supplement use during pregnancy in raising cord serum vitamin D levels