Austin: new city need help with prenatal care...
I am sorry I do not know of anywhere in the area that are willing to do those things, but if you are looking into a midwife you might be able to get one of them to hold off on charging you anythig till insurence kicks in. I have a few names of midwives if you are interested.
Also you might try posting in the texas area of finding your tribe. They are usually very helpful with questions and that forum would have more people local to the area. http://www.mothering.com/community/f/95/texas-oklahoma-new-mexico
Best of luck.