Evening Primrose Oil capsules. Insert 5 vaginally and wear a pad. They soften the cervix. The second night I did it I went into labour do not drink Castor Oil! Refer to the article on the main site in the birth section about natural induction methods.

Good luck, looking forward to a BA shortly

ETA the stretch and sweep is not painful. I had at 39 and 40 weeks. Give it a go.