I am having back pain for three days now and I am having too much white discharge which turns to yellow when dry. It has been 30 days since that withdrawal bleeding- very red, very similar and heavy like period which lasted for 3 days. That withdrawal bleeding appeared 7 days after I took plan b. Am I pregnant? This back pain and this white discharge drives me crazy. Please help me. :((( by the way I had protected sex using condom but it did not broke but I still took plan b about 9 hours later because of worriness and pregnancy scares. Thank you please reply.