I started from 36 weeks with 1 cup a day and I'm due tomorrow and having 3 cups a day now! tmi but at my internal examination last week my midwife said my cervix is soft so maybe it's helped
Apparently it should be drunk from 32 weeks. Start with one cup a day for a week, then two cups a day for a week and so on until you're having four cups a day. It tones the muscles in your uterus to make contractions more effective. It won't bring on labour though if baby isn't ready to make an appearance.