I miss my period 5 days already and today is my 6 days but now im spotting with brownish color whats this mean?

Depends: The reason that your period is late and u r spotting now could be many things. If u r using hormonal contraception it could be a side-effect or the result of not using it exactly right. If u r having unprotected sex, start with a pregnancy test and, if it is negative, repeat it in 3-5 days. It could also be due to stress, diet, exercise, other medications or diseases. Can't say which without exam