Can all birth control pills achieve 100% contraception effectiveness?

Patient's question:

Doctor:
Hello! I had my period clean on December 21st, and on December 23rd morning, I had sexual intercourse, but the condom slipped. I’m not sure if there was any sperm leakage, so I’m planning to take the emergency contraceptive pill "Plan B." I’ve heard it can cause bleeding and other side effects. Could you please tell me if taking this medication really can cause vaginal bleeding? Also, will it be 100% effective in preventing pregnancy?

Doctor's answer:

No, no form of contraception can guarantee absolute effectiveness.

📌 Related Posts