I took plan b and started feeling mild discomfort inside of my vagina with a thick white discharge, reddish sometimes. what is going on?

Pregnancy possible: If you took Plan B too late you may be pregnant. The discharge is typical of early pregnancy. Please do a home pregnancy test.

Uncertain: Maybe yeast, maybe pregnancy, may be side effect. Symptoms of a yeast infection may include: burning, redness & itching of the vulva; burning with urination & vaginal intercourse & a clumpy, white, vaginal discharge with no odor. Sometimes the discharge isn’t apparent. Take a home pregnancy test & notify your GYN if your period is 7 or > days late.