A woman's last menstrual period began on 18 January 2026. On 15 June 2026 what is her gestational age?

Answer and explanation

Correct answer: B. 21 weeks 1 day

  1. Step 1: The two dates are 148 days apart.
  2. Step 2: , so the gestation is 21 weeks and 1 day.
Answer
21 weeks 1 day.
Why not the others: 22 weeks 1 day, 20 weeks 1 day and 21 weeks 4 days do not fit.

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