Here is the translation of the given content into English: "What should I pay attention to after taking birth control pills?"

Patient's question:

I always take birth control pills to practice breastfeeding. But a few days ago, I heard from a friend that you need to pay attention to your diet when taking birth control pills. I want to ask a doctor. What dietary precautions should I take after taking birth control pills?

Doctor's answer:

Emergency contraception pills should not be taken more than three times a year.
1. Emergency contraception pills only protect against the last unprotected sexual act, and the faster you take them, the better the effect. Emergency contraception is not 100% effective. For future sexual activity, it is still necessary to use appropriate preventive measures.
2. Emergency contraception is not 100% effective. Regularly taking long-acting or short-acting birth control pills, using condoms, or inserting an intrauterine device (IUD) are more effective forms of contraception.