can't ask mom about this!!! (odor/color discharge after menstral cycle

OKay.....
so i took an emergency contraceptive pill 2 weeks ago . and then last week, i got my period. it was an okay cycle, not too heavy/light. but now, it's been three days since i've got the light day discharge..but it keeps coming! and it was supposed to be over by 3 days ago. the discharge smells bad (i thought that some people have passed gas around me or something or somtimes, itll smell like i havne't showered all day). the charge keeps coming atleast once a day, it is brown or light red or red-orangish...and during intercourse, the smell becomes really worse!!!! like a fish smell..i keep taking showers and it still hasn't stopped... i just dont know what to do and i can't tell mom b/c well, she'll suspect things !!thanks for helping me! i need it