Objective: To assess prevalence of dietary supplements consumption and exercise among pregnant women in AL Madinah and their effect on mode of delivery. Methods: Retrospective study was conducted in AL Madinah Almonawarah/ KSA. The study sample included 231 participants who were randomly selected and covered different ages, social levels and education levels. the data was collected using electronic questionnaire, the questionnaire consisted of three sections, the first section included questions about socio-demographic characteristics, while the second section included questions to assess some potential risk factors, and third section included questions to assess the interviewee\'s knowledge about exercise and using supplement and herbs during pregnancy. Results: Almost 40% of participants were aged between 19 and 29 years old, 67.3 % of participants had bachelor?s degrees. 59.2 % did not do any exercise during pregnancy. Walking was the most type of exercise a female performed during pregnancy with the percentage of 83.2 %. 84.5 % of the pregnant females were taking nutritional supplements during pregnancy, 91% of them were taking iron supplements, while 93 %were taking folic acid supplements. About 21.3% of participants have been taking herbs during pregnancy, the most common type of herbs was anise by 60.3 %. Conclusion: There was high prevalence of practice exercise among women during pregnancy in KSA, exercise reduces the need for caesarean delivery. Also, there was high prevalence of taking dietary supplement during pregnancy among Saudi women but using of dietary supplements did not affect on the type of delivery. There was low prevalence of taking herbs during pregnancy among Saudi women, and there was no effect of using herbs during pregnancy on type of delivery.