Membrane sweep and lots of raspberry tea leaf.
I agree with the raspberry leaf tea...with my 1st I was 4 days past my due date and the night before I went into labor I had a cup of that tea and also walked around a lot and it definitely worked right away lol.
I'm 39 weeks and 2 days pregnant, I've been drinking red raspberry leaf tea since 37 weeks, taking evening primrose oil pills vaginally since 34 weeks, eating lots of pineapple, yoga ball, walking around a lot, sex, hot baths. Cleaning like crazy, and nothing. I'm in early labour as of Tuesday morning, but not dilated at all. So I'm just laying here suffering lol. There's castor oil too, but there's cons to it , (I personally won't take it ).
Good luck !
Raspberry Leaf Tea, fresh Pineapple, fresh dates, and sex :)