Da Vinci 35 is a short-acting contraceptive pill that is clinically effective. However, the effectiveness of contraception is not 100%, so some people may become pregnant even after taking TAIE 35. The main effect of Dayeung 35 is to inhibit ovulation, and to prevent the fertilized egg from being laid by the endometrium by thinning and shrinking it. If the ovaries do not inhibit ovulation or the endometrium does not change to the extent that it prevents the fertilized egg from being laid, pregnancy may occur. Therefore, if you have not had a period for seven days after taking TAIE 35, it is recommended that you must rule out the possibility of pregnancy.