Alice, welcome to BB. I'm sure you will love it here.

Good on you for seeking out a doula to assist you in your VBAC. I'm sure when you find her a great assest to your birth.

I have gotten a client at about 32 weeks, 30 weeks and I have gotten a client at 5 weeks. I guess it really depends on the doula and how busy she is.

Take the time to get to know your doula, be sure that she is supportive of your birth wishes. Most doulas are very supportive of VBAC's and want to see you get the very best.

Congratulations on your pregnancy and goodluck !