Question

A woman presents to her physician complaining that her menstrual cycles are irregular. She reports that she menstruates each month, but she cannot predict when. After reporting the dates of her last 5 periods, her physician concluded that her cycle is normal, but that is a 35 days cycle. She reports that she wants to get pregnant, but cannot predict when ovulation will occur. Her physician will tell her that she should expect to ovulate on day.

• A. $10$
• B. $17$
• C. $15$
• D. $21$

Answer 1

The correct option is B $17$

Ovulation normally occurs at the mid of a 28-day menstrual cycle, that is on the 14${}^{th}$ day. For the given menstruation cycle with deviation by 7 days and a full cycle of 35 days, ovulation will occur at the mid of 35 days, that is on the 17${}^{th}$ day.

Thus, the correct answer is '17.'