Congenital heart defects are the most common fetal anomaly. Congenital heart defects with single ventricle cardiac defects have high mortality rates, and in pregnancies diagnosed with this condition, patients are often offered termination of pregnancy (TOP) as an option. This study aimed to investigate the relationship between gestational age at diagnosis and reproductive choices in fetuses diagnosed with single ventricle cardiac defects. We conducted a retrospective single-center cohort study in which 158 patients with a fetal diagnosis of single ventricle cardiac defects (SVCD) were reviewed. Cases were categorized as isolated or complex. Complex cases included fetuses with SVCD in addition to other fetal extracardiac anomalies (ECA) or chromosomal abnormalities. 158 patients were diagnosed with SVCDs during the study period. Of those, 37 (23.4%) underwent termination of pregnancy, 113 (71.5%) delivered, and 8 (5.1%) had an intrauterine fetal demise. Gestational age at diagnosis and race were significant predictors of the termination decision. The median gestational age at diagnosis was earlier in the TOP group (20.4 vs. 23.6 weeks) (p < 0.001). SVCD diagnosed in early gestation (11 weeks-14 weeks 5 days) were more likely to terminate compared to Mid (15 weeks-27 weeks 5 days) and late (28+ weeks) gestation (54.2 % vs 23.2% and 2.9%) (p<0.001). Earlier gestational age at diagnosis was correlated with earlier gestational age at termination (r= 0.92, p < 0.001). Termination of pregnancy is more common when the SVCD is diagnosed earlier in gestation. This could be explained by the fact that early diagnoses allow parents to make deliberate and informed decisions.