Important Leaking Question at 32 weeks????

Im 32 weeks on my 4th pregnancy. Never experienced my waters breaking on its own or anything like that so please dont judge me. Ive had regular extra whitish discharge with no smell my whole pregnancy so Im well aware of that. Woke up at 6am to a slight gush of liquid that was enough to soak my panties. Jumped up cleaned myself up and fell back asleep. Woke back up around 9, more leaking but not as much as the 1st time. Im now up (finally smartly wearing a pantyliner) and Im not having contractions but my vagina and butt area feels achy. My question is has this happened to anybody? Im about to call my doctor but he doesnt take things that happened very seriously and I dont want to overreact and taking a hr and a half drive to labor and delivery for nothing.. Any input is appreciated!!!