What was that

Ok, after skipping(ropes) I went to pee and when I wiped I saw it was pink, light pink, then I went to bed without my knickers and kept feeling something streaming down my bum cheeks i jumped up thinking it was blood, went to the toilet n wiped and saw it was discharge or was it liquid? I dont even know what is was. Then that was all. My periods is due tomorrow or next. What was that?