How to Calculate the Safe Period (Non-Fertile Days)
To calculate your non-fertile days (also known as the safe period), it’s important to first understand when ovulation occurs.
In general, ovulation happens about 14 days before your next menstrual period begins. Since sperm can survive in a woman’s body for up to five days, and the released egg can live for around one day, the fertile window—when pregnancy is most likely—typically spans from five days before ovulation to four days after ovulation.
Days outside this window are considered relatively non-fertile days, commonly referred to as the “safe period.”
The Safe Period Isn’t Completely Safe
The so-called “safe period” refers to the phase outside ovulation, when the chance of pregnancy is lower. However, it does not guarantee complete protection against pregnancy.
Factors such as stress, irregular sleep, climate changes, or hormonal fluctuations can all affect ovulation timing—causing it to occur earlier or later than expected.
Moreover, because sperm can survive inside the female body for up to 5–7 days, having intercourse even during a calculated “safe period” may still lead to pregnancy.
If you’re not planning to conceive, it’s best to use effective contraception methods, such as:
Using condoms correctly
Taking birth control pills as prescribed by your doctor
Considering emergency contraception when necessary
These methods are far more reliable than relying on the “safe period” alone to prevent pregnancy.
Irregular Periods? Give Yourself More Peace of Mind
Irregular menstrual cycles can make it difficult to predict when your period will arrive, complicating safe period calculations and sometimes causing unexpected inconvenience during work or outings.
That’s why Go&Move Period Underwear can be a thoughtful and eco-friendly choice.
It features high-absorbency layers, leak-proof design, and breathable materials, making it ideal for wearing during the early or late days of your period—or on uncertain days when your cycle might surprise you.
It can replace or complement sanitary pads, keeping you fresh, dry, and comfortable.
For women with unpredictable cycles, wearing Go&Move Period Underwear provides an extra layer of protection anytime, anywhere.
Whether at work, exercising, or sleeping, it helps you stay confident and comfortable through every phase of your menstrual cycle—making life easier and more relaxed.
