Difficult deliveries are most likely to occur in which trimester?

• A. Third Trimester
• B. First Trimester
• C. Second Trimester
• D. Postpartum

Answer: (A)

Difficult deliveries occur most often as pregnancy reaches term and labor begins. The third trimester—roughly weeks 28 to 40—is the late stage when birth is imminent. As the fetus grows, the uterus becomes larger and space inside the birth canal tightens, increasing the likelihood of complications like malpresentation (breech, shoulder dystocia), prolonged labor, or placenta-related problems. Early in pregnancy (first and second trimesters), delivery is not imminent and complications of labor are far less likely. Postpartum refers to the period after the baby is born, not during delivery. So the timing with the highest chance of a difficult delivery is the third trimester.