In fact, the side effects of oral short-acting oral contraceptive pills are as follows: 1, some people may want to vomit, nausea, and then feel weak, like the reaction of early pregnancy, called early pregnancy reaction, generally do not need to do any special treatment, if the vomiting is really too strong, you can go to the hospital to take a look; 2, there may be vaginal bleeding, generally in the first three months after taking oral medicine, the first If the bleeding is relatively small, you do not need to worry about it, you can eat some estrogen, prescribed in the hospital, if the bleeding is too much, the second half of the menstrual cycle, start taking this drug orally, too much bleeding, simply stop it; 3, amenorrhea, general oral contraceptives, some people do not come to menstruation, stop the drug does not come. This time you can first test a urine test to see if you are pregnant. If the test is not pregnant, the next cycle can continue to eat on the seventh day of menstruation; 4, some people will have some changes in weight or skin, and gain weight after taking the pill, mainly because of estrogen, which can cause water and sodium retention, and androgens can lead to an increased appetite, and weight will increase. But we now have a drospirenone contraceptive pill, in fact, very good to prevent the retention of water and sodium, will not increase weight; 5, some people feel headache, breast pain, etc., if it is mild, you can first observe, if it is good serious, very worried, in fact, you can go to the hospital to see.