Well the most to induce natural birth would be sex, more walking, squatting, up down the stairs. But this depend on whether baby is already engaged and ready to enter birth canal. Have they did membrane swab? Sometimes this helps too. I had membrane swab for my first child but had to be induce a week after EDD as waterbag still did not burst while I was 3cm dilate. I could not go for natural birth and was on assisted delivery.
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