Background: Advanced maternal age generally signifies age after 35years during the time of delivery. Although the fact that being pregnant at any reproductive age is not risk-free, older gravidity usually caps with adverse outcomes both to the mother and fetus or neonate. Objective: The key objective of this study was to compare pregnancy outcomes associated with three different maternal age groups. Materials and Method: It was a comparative observational study performed at the Department of Obstetrics and Gynecology, Shaheed Suhrawardy Medical College & Hospital, Dhaka, Bangladesh. The study included all women who delivered in gyane & Obs department at 24 weeks’ gestation period from January 2017 to December 2018. Results: In this study, three maternal groups were considered as the younger age group of 18-29 years, middle age group of 30-34 years, and advanced mother age (AMA) 35-40 years in maternal age. Chronic hypertension was significantly associated with maternal age. However, antepartum hemorrhage, placenta previa, abruptio placenta, gestational hypertension, preeclampsia, eclampsia, gestational diabetes mellitus (GDM), and bad obstetrics history (BOH), were not statistically significant (p>0.05). Regarding malpresentation, breach, transverse lie, congenital malformation, intrauterine device (IUD), preterm labour, prolonged labour, obstructed labour and postpartum hemorrhage (PPH) were not statistically significant (p>0.05). Low birth weight was found 38(30.9%) in the age group 18-29 years, 9(20%) of 30-34 years, and 3(18.8%) in the age group 35-40 years. Intrauterine growth restriction (IUGR) was found 3(2.4%), stillbirth 6(4.9%), prematurity 4(3.3%) and macrosoma 1(0.8%) in the age group 18-29 years, in the age group 35-40 years, NICU admission was needed 36(29.3%) in the age group of 18-29 years,8(19.5%) in age group30-34 years and 2(12.5%) in the age group 35-40 years. The difference was not statistically significant (p>0.05). Conclusion: In our findings demonstrate that though any reproductive age groups are not risk-free of pregnant women, over 35 years are at elevated risk for rising complications and should, therefore, be managed with proper care protocols, particularly in cases of maternal complications of pregnancy.