A woman's last menstrual period began on 10 March 2026 with regular 28-day cycles. By Naegele's rule, what is her due date?

Answer and explanation

Correct answer: C. 17 December 2026

  1. Step 1: Add 7 days to the first day: 17 March. Step 2. Subtract 3 months: 17 December 2026. Answer: 17 December 2026. Why not the others: other dates omit the added week or mis-count the months.

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A woman's last menstrual period began on 10… | MCCQE Part 1