39 weeks & not sure if it's signs of labour

first time mummy here, need some advice pls :) currently at my 39 wk 2 days. yesterday mucus plug went out, very thick brown discharge. had irregular contractions throughout the night & today. pelvic area starts to feel painful today. no other signs of labour thus far. have a weekly appointment on Monday at KKH. is it a sign to head down to hospital or should I just keep waiting till my appointment? 😐