Why should I use protection on red days? (NC° Birth Control)
For Natural Cycles to be effective as a birth control method, you need to use protection on red days or abstain from penetrative vaginal sex. Red days are the days in your cycle when you are fertile or potentially fertile.
You can learn more about Natural Cycles’ effectiveness here.
Which protective method should I choose?
How you choose to protect yourself on red days is a personal choice however, Natural Cycles recommends using male condoms or abstaining from vaginal intercourse on red days.
To understand which method is best for you, it is important to consider the effectiveness of each method. Since no method of birth control is 100% effective, if you are sexually active, there will always be a risk of pregnancy. However, some birth control options are more effective than others.