Gynaecology & Obstetrics Safe period in rhythms method is : (In a female with 28 days menstrual cycle) : A Initial 14 days B Later 14 days C First and last 7 days D 10 to 21 days of the cycle 💡 Explanation Safe period in rhythms method is : (In a female with 28 days menstrual cycle) : ✓ Correct Answer: C. First and last 7 days