6w6d preg on utrogestan 200mg for 4days .. have bad discharge that smells bad and burns and makes me very itchy... must i see a doctor or is normal?

Vaginal discharge: Vaginal discharge requires an examination to determine the cause and treatment. Bacterial vaginosis is the most common cause and often has a vaginal odor. Vaginal itching can be a sign of a yeast infection. Sometimes vaginal discharge can be a sign of a sexual transmitted infection. Testing is important to determine the treatment and keep you and your partner safe.