Please help!!

I am 34 weeks pregnant and had to get a cerclage at 13 weeks because I had my son at 24 weeks. So this afternoon when I woke up from my nap my underwear felt pretty wet. I didn’t think much of it because I usually have a lot of discharge. However after I woke up I decided to go take a shower and as I was shower I could feel stuff come out of my vagina. I’m just not sure if it’s just a lot of discharge or my amniotic fluid. What do you guys think?? Should I call the dr? What do I tell them?