Thank you for your query.
would cause abnormal bleeding as happened earlier in your case, but not the white discharge.
A milky white discharge is normal at certain stages of the menstrual cycle.
Even otherwise, it might signify a pelvic infection
, you would know only if you miss your period
BY the way, having a Plan B
frequently is not a good idea as it messes up the pattern of your periods, in addition to having side effects.
Right now, if the discharge doesnt abate, consult a gynecologist to rule out infection.
Take a pregnancy test to confirm if you miss your period.