You may be getting a yeast infection or a UTI I would get in to see your OBGYN or at least a family doctor.
Get swabbed at your doctor. You might have BV.
You might want to look at the colour of the discharge. If it's Greenish and smells like fish you might have Vaginal Candidiasis or Yeast infection. It's a common disease in women. It's caused by a lot of things like cleaning your vagina with soap. You will need to see a doctor to prescribe medication.
Hope this will help.