25 weeks pregnant

Blerta
So yesturday at work I was sitting down for about 30-40 minutes on my break well when I got my I felt a lot of pressure down there. It felt so numb I couldn't walk because it felt like something was about to come out! Well today I use the bathroom and wiped well when I did I had some clear/yellowish discharge about the size of a dime.
I have had a lot of discharge and it's always been white. 
I'm just hoping it's not early labor! 
Any advise?