This discharge is usually white or yellow and fairly thick. It is not an infection. We believe it is caused by the increased blood flow to the skin and muscles around the vagina, which causes a violet or blue coloration of the vagina. This symptom, visible to your doctor early in pregnancy, is called Chadwick's sign. You may have to wear sanitary pads if you have a heavy discharge.
Vaginal infections can and do occur during pregnancy.
The discharge that accompanies these infections is often foul-smelling, is yellow or green, and causes irritation or itching around or inside the vagina. If you suffer from any of these symptoms, call your doctor. Many creams and antibiotics that treat vaginal infections can be used safely during pregnancy. Douching during Pregnancy Most doctors agree you should not douche during pregnancy. Using a douche may cause you to bleed or may cause more serious problems, such as an air embolus.