Discharge at 31weeks question...

Well I went to the bathroom and then wiped and you know when u like get done having sex and u get that like stringy clear stuff when u wipe after sex (TMI) well after I used that bathroom tonight I got some of that and haven't had sex since yesterday and have peed many times after and showered... my question is what could it be? Would it be my mucus plug or just regular discharge? This will be my first baby and don't know if I should inform my doctor.