You must be careful with this. Speak to your midwife, do not drink it until 4 weeks before your due date. It helps tone the uterus and to induce stronger contractions and therefore an easier birth. It worked 4 x for me.
take it from the end of month 7 and prepare your body for labour, it claims to work, maybe i started drinking it too late, although i was only in labour for 2 hours and never felt much pain without drugs.,,, now i think of it , maybe it did work.lol