Discharge or amniotic fluid?

Am
Do any of you ladies worry as much as I do about the increased discharge being more than just discharge? (I'm 25 weeks) I find most of the time when I use the bathroom I have a big, clear, wet spot in my undies. I have an appointment Monday where I am going to talk to my OB about this but hubs thinks I'm just worrying too much... I don't know what to think...