Objective: To determine the fetal and maternal outcome among pregnant women who are diagnosed positive for co-occurrence of Ureteric Stones and Urinary Tract Infections during their third trimester. Study Design: Cross Sectional Analytical study. Setting: Urology and Gynecology Department of Mukhtar A Sheikh Hospital Multan. Period: 6th February 2020 to 6th July 2020. Material & Methods: Pregnant women in their third trimester were confirmed for the presence of ureteric stones and urinary tract infections through imaging and urine culture studies. Cases confirmed for the disorders were then evaluated for any complications during the remaining gestational period. The diseased group was compared with healthy pregnant women. Results: Out of 200 selected women, 60 (27.7%) were positive for comorbidity of two illnesses. Among pregnancy outcomes, Preterm Labor (46.6%) has the highest rate of incidence followed by Preeclampsia (41.6%), Oligohydramnios (10.6%), Abortion (1.6%), Operative Intervention (cesarean section) (36.6%), Acute Renal Failure (5%), Acute Respiratory Distress Syndrome (11.6%), and Septicemia (1.6%) among the study group. Similarly, fetal outcomes such as fetal demise (1.6%), Low birth weight babies (58.3%), and premature babies (51.3%) were statistically significant in the study group than the control group. Conclusion: The coexistence of ureteric stones and UTIs is largely affecting pregnant population and this co-morbid condition has a significant impact on fetomaternal health.