Does using Nonoxynol-9 suppository for contraception before pregnancy have an effect?

Patient's question:

No

Doctor's answer:

Hello, it is generally not advisable to take emergency contraception more than twice a month or more than three times a year. Excessive use may lead to menstrual irregularities. It is important to monitor your condition. If you experience menstrual irregularities, you can take Wuji Baifeng pills or traditional Chinese herbal medicine for regulation. Maintaining a positive mood and getting adequate sleep are also helpful for restoring your cycle.