Nausea and vomiting after taking short-acting contraceptives is considered to be an adverse reaction to the medication, which should be discontinued in time, and under normal circumstances, the discomfort can be relieved on its own after discontinuing the medication for a period of time. The main components of contraceptives are estrogen and progesterone, taking short-acting contraceptives, long-acting contraceptives, emergency contraceptives, may be similar to the early pregnancy reaction of nausea, vomiting and other uncomfortable symptoms, which is a normal reaction. If you feel nausea and vomiting after taking short-acting birth control pills, you can relieve the discomfort on your own after stopping the pills for a period of time, and usually no special treatment is needed. It should be noted that, in addition to nausea and vomiting after taking the emergency contraceptive pill, it may also lead to heavy vaginal bleeding or spotting bleeding, dripping, delayed menstruation, amenorrhea, irregularity, and greater damage to the ovarian function, so it should be avoided as much as possible to choose the emergency contraceptive pill taken by mouth. If you feel unwell, you should go to the hospital in time to avoid delaying your condition or triggering adverse reactions.