When should you start taking regestrone 5mg to postpone your periods by 2-3 days?

Regestrone 5mg should typically be started 3-4 days before your expected period to effectively postpone it by 2-3 days. It's important to take the medication as prescribed by a healthcare professional, who can provide guidance based on your individual health needs. Always consult with a doctor before starting any hormonal medication to ensure it's appropriate for you.