Almost all women have more vaginal discharge in pregnancy. It should be clear and white and it should not smell unpleasant. If the discharge is coloured or smells strange or if you feel itchy or sore, you may have a vaginal infection. Tell your doctor or midwife. The most common infection is thrush which your doctor can treat easily. You can help prevent thrush by wearing loose cotton underwear. If vaginal discharge, of any colour, increases a lot in later pregnancy, tell your doctor or midwife.