Clear discharge before period is often a normal part of the menstrual cycle. Vaginal discharge can change in amount, color, and consistency as hormone levels fluctuate throughout the month. Clear or slightly white discharge may occur before menstruation and is usually not a cause for concern when it does not have a strong odor or cause itching, burning, or irritation. Understanding normal discharge patterns can help you recognize changes in your menstrual health. USA Fibroid Centers provides helpful information about menstrual symptoms and women's reproductive health.
https://www.usafibroidcenters.com/blog/what-does-discharge-look-like-before-your-period/