clear Discharge?

I am 14 years old. My sencond period ended about 2 weeks ago and I am in my "Fertile Stage".
I don't know why but, I have been having lots of clear discharge and I don't know what's happening. It's more than normal and my mom told me it's normal. Like I would wake up in the middle of the night soaked my panties of discharge and it's very embarrassing. What do I do?