confused?

So last night, I'd had a bath and got settled on sofa. I got up to go make a tea, put cups on side and walked to the sink to fill the kettle but when I got to the kettle I felt a bit of a gush. So I put my hand there to feel and it was wet and it felt like it started to seep out the side of my knickers so I ran to the toilet and there was quite a bit of clear fluid along with some snotty/stringy discharge. I wiped away the discharge but some of the water that was left on my knickers was a bit green/yellow but when I wiped my vagina it was clear fluid. I had to change my knickers and my shorts because they were wet. I then laid down for half hour and got back up to see if it was my waters that had broke but nothing came out. I had lots constant cramping yesterday and got it again today. Anyone any ideas? I'm 37+6