The monoprogestin contraceptive pill is generally not recommended during breastfeeding. Because the monopregnanolone contraceptive pill also contains progestin, if taken during breastfeeding may be absorbed through breast milk, absorbed by the baby may affect growth and development, and in serious cases may cause precocious puberty, so it is not recommended to take the contraceptive pill during breastfeeding. If you want to contracept during breastfeeding, it is better to use condom, which is safer and will not affect the quality of breastmilk, and can prevent the spread of sexually transmitted diseases at the same time. You can also choose intrauterine insemination (IUI), which is a simple and quick method of contraception that can prevent sperm and egg from meeting and combining to form a fertilized egg, thus achieving the purpose of contraception. Try not to contracept by taking pills during breastfeeding, and do not take other medicines at will, so as not to affect the quality of breastmilk. If you need to use contraception, you should take into account your personal situation and choose the most suitable method of contraception based on your doctor’s advice.