Sweat or water break? ASAP!

💖Amanda • Fri, Aug 28 2015 • Have a 5 year old from my previous relationship. Now married to my true love and baby #2 is due aug 2015

Soooo it's about 102 where i live.... I am wearing a skirt and had on a thong...... I started to feel dribble down both my legs while waiting to pick up my son..... I'm not the smallest person so my question is could it just be sweat or could it be my water leaking?