Took RLT from about 28/30 weeks (cant exactly remember now !!)
Successful VBAC bit under 5 hour labour (no drugs) only just made it to hospital !!
Wonderful - swear by the RLT !!

Didnt do the Evening Primrose so cant comment on that - maybe I should have as I had to have an episiotomy.

Best of luck - IMO I dont think it hurts to give it a go.