White discharge before your period is usually a normal part of the menstrual cycle. Hormonal changes, particularly rising progesterone levels, can cause the vagina to produce a creamy or milky-white discharge. In most cases, this discharge is odorless and helps keep the reproductive system clean and healthy. The amount and consistency may vary from person to person. However, if the discharge is accompanied by a strong odor, itching, burning, or an unusual color, it could indicate an infection and should be evaluated by a healthcare provider. Tracking changes can help you better understand your body.