Intelligent analysis by inputting menstrual data: - **Menstrual period**: the time when the uterine lining is shedding (usually 3-7 days) - **Dangerous period (ovulation)**: the time when the probability of conception is high (including the day of ovulation and the 5 days before and after it) - **Safety period**: includes the pre-ovulation safety period (5 days from the end of the period to ovulation) and the post-ovulation safety period (from the end of ovulation to the next menstrual period). **Safe period**: includes the pre-ovulatory safe period (5 days after menstruation and before ovulation) and the post-ovulatory safe period (from the end of ovulation to the next menstrual period).
Steps for use
1. **Input data**: start date of last menstruation, average number of cycle days (25-35), duration of period 2. **Automatic calculation**: click on the Generate button to get a visual cycle chart 3. **Interpretation of the results**: clear indication of the fertile period, the safe period, and the expected time of menstruation
Cautions
• Results are based on regular cycles, stress/illness may affect accuracy - Safe period method is about 76% effective, it is recommended to combine with condoms and other alternatives - Consult a gynecologist if you have long-term abnormal cycles.
Scenarios
✓ Natural contraception planning ✓ Preparation cycle monitoring ✓ Menstrual health records* Note: This tool is not intended to be used as a medical diagnosis, but only for health management purposes*.