Understanding Menstrual Cycle Length

What supplies are needed to calculate your menstrual cycle length?

• A thermometer, a calendar, and a diary

• A calculator, a diary, and a stopwatch

• A calendar, a thermometer, and a calculator

• A calendar, a calculator, and start dates of at least three cycles

How do you determine the first day of your menstrual cycle?

• The day you start feeling bloated

• The day you feel cramps

• The day you have an actual flow of menstrual blood

• The day you experience spotting

What is the average menstrual cycle length calculated in the example?

• 28 days

• 30 days

• 29 days

• 31 days

What is considered an irregular menstrual cycle?

• A cycle lasting between 21 to 35 days

• A cycle shorter than 21 days or longer than 35 days

• A cycle that is exactly 28 days

• A cycle with a bleeding phase of 3 to 7 days

Why is it beneficial to know your menstrual cycle length?

• To determine the best time to exercise

• To predict the exact time of ovulation

• To know when to visit a doctor

• To understand if your periods are regular and to plan or prevent pregnancy