Spotting or light period?

Allie • Hi, im 12yrs old and im in 7th grade.
Okay so for the past few weeks I have been getting this light pink discharge and starting this week it got darker. Like a period blood color. When I went to check my pad there was barley anything there and I we t swimming with out a tampon and nothing happened. I'm confused is this a light period or am I just spotting (I'm 12 and I had already gotten my first period)