The main contraceptive pills that are less harmful to the body are short-acting contraceptives, which have a lower hormone content than emergency contraceptives, and therefore are less harmful to women’s bodies. In these contraceptives, currently Ursine is the lowest hormone content in all contraceptives, especially the estrogen content, only 0.025mg, because of the low hormone content, so it has lower side effects on women. Of course, the disadvantage of short-acting contraceptive pills is that they must be taken every day throughout the menstrual cycle, and must not be missed in the middle of the cycle, and if in case it is missed, it must be made up within 12 hours, otherwise the contraceptive effect will be affected.