Thick creamy white discharge 1.5 weeks before period. No itching/discomfort?

Probably normal. The nature and volume of the vaginal discharge will vary through the cycle. At the time of ovulation the discharge becomes thinner and the volume increases. At the point you note - you would have already ovulated and you may be seeing the inherent increase in discharge. After a few more days the discharge will usually decrease - as the time for the period approaches.