Vbac moms!!

Hi there ladies, I'm currently 26weeks. With my 2nd child. My last baby was born 5 yrs ago. I had to get a c section. She was too big for me to push and I only dilated to 6cm. My dr. Was scared of her not making it or me due to her pooping and the lack space.. he decided a c section.. well 5 yrs later here we are again. Im watching my wait this time Im sure my son will still be big.. but Im determined to have him natural I refuse to get cut open.. this new dr. I have was like okay you can do vbac but idk.. hes tryna convince me a csection would be safer but a vbac is considered the safer instead of a repeat csection.. I know when the time comes my they cant give me pitocin.. just pop my water and thats it.. so vbac moms my question is what helped you dilate or soften and actually be ready for the baby..? Im getting alot of recommendations for primrose oil 2000mg.. anything else you ladies recommend?