Your waters is kind of a bit thicker than water and it has a staw/semen kind of smell, its quite a distinct smell! I remember thinking when mine broke that they were totally different to how Id imagined them to be!
I had a lot of discharge during pregnancy as well and sometimes a lot of it where it would wet my knickers
Best thing to do is tell your MW, as they can test it to see if its your waters or something else.