My period is late by 4 days by now. I did pregnancy test but it came to be negative. But somehow my white discharge has increased. There is no itching or burning sensation associated with it but am scared with this sudden increase of white discharge. What can be the possible reason? I had taken emergency contraceptive on 3rd january. My period was scheduled to be on 7th January and today it's 11th january. White vaginal discharge increased from 5th january.