amniotic fluid leaking?

I have a appointment tomorrow so I'm trying not to panic and drive an hour to be sent home .. but I took a shower this morning when I got out I felt like I had to pee so I sat down and peed bent over grabbed dirty clothes and took them to washer.. on my way I felt like I was peeing looked in my panties and saw this.. now I've changed my liner 3 times is the past 3 hours and it has continued to appear.. it is clear but has some specs of mucus or snot looking stuff? Any ideas I am 39 weeks and 4 days