Background: Pregnancy also known as gestation is the time during which one or more offspring develop inside a female ,it represents a time of rapid change -changes in physical proportions and physiology.Vitamin D deficiency is observed worldwide in pregnant women ,it is important during pregnancy because it reduces the risk of preeclampsia, LBW,SGA,gestational diabetes,neonatal hypocalcemia and neonatal asthma . AIMS And Objectives: The research aims to find out outcomes of low vitamin D level in pregnant females . METHODOLOGY: Study design and Sampling:It was a longitudinal study.The sampling technique used was non probability purposive sampling. Study Setting and Duration:The study was conducted in Basic Health Unit Kotli said Amir Tehsil and District Sialkot from Dec 2018-Dec2019. Inclusion and Exclusion Criteria: All pregnant females were included except multigravida with previous history of C-section,preeclampsia,gestational diabetes and any known previous pregnancy related complication. Data collection and analysis:The sample was selected using non probability purposive sampling technique.Pregnant females PA ,USG and baselines were checked on antenatal visits.Serum vitamin D levels were checked at the time of delivery.The data was analyzed using SPSS 20. RESULT:The study included 300 patients of BHU kotli Said Amir Sialkot .The age of sample ranged from 18years to 40 years with mean age of 28 years.Sixty three percent (189 females) were multigravida ,37%(111 females) were primigravida. Sixty one percent (183 females) had vitamin level below 30ng/ml measured at the time of delivery, among them 70% (128 females) pregnant females were multigravida and 30% (55 females) were primigravida . Among vitamin D deficient pregnant females fifty eight percent (106 females) underwent C Section, 73 pregnant females (40% females) presented with preterm labour Conclusion:It is concluded from the research that there is a high prevalence of vitamin D deficiency among pregnant females and there is significant role of vitamin D on pregnancy as well as growth and development of fetus.This research points out the importance of regular vitamin D supplementation during pregnancy.