This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous (Gynae), Subject name: Gynaecology & Obstetrics
Ampullary pregnancy ruptures generally at____ weeks 
Select and explain. 
A. 6, B. 8, C. 12-Oct, D. 16
B: 8
Answer: B: 8 
Explanation: Ans. is 'b' i.e., 8 * Implantation within the tubal segment that penetrates the uterine wall results in an interstitial pregnancy.* These account for about 3% of all tubal gestations. Rupture may not occur until up to 16 weeks.* Ampullary pregnancy generally ruptures at 8 weeks and isthmic at 6 weeks.