In an ectopic pregnancy, the fertilized ovum is most likely implanted in which location?

• A. Cervix
• B. Upper third of fetus
• C. Lower third of fetus
• D. Fallopian tube

Answer: (D)

Ectopic pregnancy means the fertilized egg implants outside the uterus, and the fallopian tube is the most common site because it’s the pathway the egg travels before reaching the uterus. The tube isn’t designed to accommodate growing tissue, so implantation there can lead to rupture and life-threatening bleeding, making it the best answer. Implanting in the cervix is possible but rare and typically more dangerous due to heavy bleeding; the other two options describe parts of the developing fetus rather than plausible implantation sites.