Discharge + cramps🤔

Umm so my period is coming in 6 days and I normally get pms 3 days before and cramps the night before. Is that normal? Like I don't get cramps during my period, only the night before. And also, (little tmi now) when I wipe after a pee I see like snot. Honestly, it looks like my vagina sneezed😂 I know it's discharge but is it normal for it to be that sticky and stringy and stretchy😂😂? Do you get like more discharge before your period? 
              I'm 13 btw☺️💕