Contraceptive pills, as the name suggests, are mainly used for “contraception”, but many menstrual disorders, IVF before ovulation, the doctor will also recommend oral short-acting contraceptive pills for a period of time. For example, if you have polycystic ovaries, your doctor may recommend taking Daying-35 on a regular basis.So, does taking birth control pills in this way do any harm to your body? Are there any side effects? Short-acting oral contraceptives are compound drugs made of estrogen and progesterone, and clinicians use their ingredients to regulate menstruation. The estrogen and progesterone in short-acting contraceptives are low in content, fast in metabolism, and need to be used continuously every day to play a role in the drug, and the drug will be metabolized soon after stopping the drug, so if you miss the dose you may not be able to achieve the effect of contraception or regulation of menstruation, so from the point of view of the metabolism of the drug, short-acting oral contraceptives have fewer side effects, and even if they do have side effects, they will generally disappear within 24 hours after stopping the drug. The common side effects of short-acting contraceptives are: 1. Very few individuals will experience nausea and vomiting, the incidence of which varies from drug to drug. Women do not need to worry when this happens, this will not last long, nausea usually lasts no more than 24 hours. 2, some women will have vaginal bleeding after using the drug, but the amount of blood and the usual menstrual period is not the same, the amount will be very small, like this case do not have to do any treatment, insist on taking 1-3 months, the symptoms will usually disappear. 3.Menstrual changes, most women will have their menstruation on time, and some women will have their menstruation early or delayed. 4.Others: breast swelling and pain, headache, dizziness, fatigue, etc. These symptoms are usually mild and last no more than 24 hours. Summary Overall, short-acting contraceptives are relatively safe. However, it should be noted that apart from short-acting contraceptives, there are also long-acting contraceptives, emergency contraceptives and other types of contraceptives which contain high levels of estrogen and progesterone. Emergency contraceptive pills, in particular, if taken in excessive amounts, can produce gastrointestinal discomfort, menstrual cycle disorders, ovarian suppression and other phenomena, disrupting normal menstruation, and need to be used under the guidance of a doctor.