In a typical 28-day cycle, the most fertile days occur during which days?

In a typical 28-day cycle, the most fertile days occur during which days?

• A. 21-28
• B. 1-6
• C. 9-16
• D. 6-9

Answer: (C)

The most fertile days are tied to when ovulation occurs. In a typical 28-day cycle, ovulation happens around day 14, triggered by a mid-cycle LH surge. Because sperm can survive for about 3–5 days in the female tract and the egg remains viable for about 24 hours after ovulation, the window for becoming pregnant spans several days before ovulation and the day itself. That puts the highest likelihood of conception roughly from day 9 through day 16. If cycles are regular, this mid-cycle range is the peak; earlier days (before day 9) and later days (after day 16) are less likely to result in conception. If cycles vary in length, the window shifts accordingly.

The most fertile days are tied to when ovulation occurs. In a typical 28-day cycle, ovulation happens around day 14, triggered by a mid-cycle LH surge. Because sperm can survive for about 3–5 days in the female tract and the egg remains viable for about 24 hours after ovulation, the window for becoming pregnant spans several days before ovulation and the day itself. That puts the highest likelihood of conception roughly from day 9 through day 16. If cycles are regular, this mid-cycle range is the peak; earlier days (before day 9) and later days (after day 16) are less likely to result in conception. If cycles vary in length, the window shifts accordingly.