might be tmi, need some advice

So I'm 31 weeks pregnant and for the past week have been getting a lot of discharge some times to the point where I think maybe my waters have broke cos I feel so 'wet' down there (I'm a ftm so not sure what to expect). I've been getting a lot more braxton hicks as well as a dull lower back ache and today have an 'ache/dull pain' what feels to be like in my vagina. Can anyone give me some advice or has anyone else had this?