If you forget to take one tablet, take it as soon as you remember, even if it means taking two tablets at the same time and then follow the usual dosing schedule. However, if you forget to take two or more doses, you may not be totally protected against pregnancy. In this case, start taking the tablet as soon as you remember and use a non-hormonal method of contraception such as condoms for at least next 7 days to prevent pregnancy. Frequent missing of doses may lead to unexpected vaginal bleeding or spotting (blood stain). Consult your doctor, if this persists.