Speeding things up?

Hi ladies! I am 38 weeks tomorrow and have been having sporadic but strong contractions at night for the past two weeks. Never any pattern and they always go away once I’m up for the day. At my appointment yesterday, I was 2- 3cm and 50% effaced with baby at a -2 station. Anyway, my overnight contractions have stopped for the past two nights and I was really hoping they would continue and get this show on the road! Any suggestions for what I can do to speed things along? Also I am a 2nd time mom; my first was born at 38+2 spontaneously.