When you have secretions that are not of the eggwhite type, they will be thinner and milky colored and dry light yellow or light green on your pantiliner.
Totally normal, keeps the vagina clean. Get yourself a box of thin pantiliners, and google "vaginal secretions." Mid-cycle (halfway between periods) you'll have a couple of days of "eggwhite cervical mucus," which is clear and thick like raw eggwhite. It's normal too, and signals the body getting ready to ovulate.