Mucus plug and contractions

Mummies I’ve been having on and off contractions since 8am and recently timing is between 6-7mins with 1min contraction each. Then timing stretched again between 6 to 36 mins interval.. Had a little bit of brownish stain on my pantyliner prior to the regular contractions, And then a tiny streak of light red mucus. When should I go hospital? I’m supposed to be induced tmr (19 Oct).