If it's clear like raw eggwhite, and you could practically cut it with scissors, it's not just normal, it's textbook. Eggwhite cervical mucus happens in the few days before ovulation and when you ovulate. It is designed by the body to facilitate incoming sperm and help them move right up into your cervix (which gapes open slightly at that time). Most of the time women have thinner, milky white or light green or yellow vaginal discharge, which tends to be hostile to entry of sperm and performs the nice task of keeping the vagina clean. My guess is that if you see EWCM, your next period will arrive in 14-16 days, so yes, if your app says your period is supposed to come in 8 days but your cycle is irregular, that makes sense. Anyway, if you want to get pregnant, go for it, but if you don't want to get pregnant, don't have sex when the EWCM is this obvious, unless you have the world's best protection. Google "cervical mucus" and you'll find all kinds of helpful descriptions.