Congratulations!
I don't know where Legend Oaks is, but I recommend Westlake Pediatrics. Dr. Edith Hamilton is fantastic! I especially like them because they have walk in hours everyday until 11:30 a.m.
When I moved into town six years ago, one of my sons got sick before I had a chance to get a doctor for them. Every office I called wouldn't see us that day or the next because we were new patients. I was calling everyone in the phone book. When I finally called Dr. Hamilton's office, they said to come right in.
Dr. Hamilton's office has a low turnover rate, so my children and I know the folks we see whenever we come in. Dr. Hamilton also spends as much time as we need with her making sure that she is thorough (and my kiddos come up with some interesting symptoms) and answers all my questions. She generally asks my sons about what is going on rather than me. In spite of the fact that my children exaggerate whatever is going on with them, she has never once lost her patience or rolled her eyes at them; she just gently probes until she gets to the root of the problem.
Her office is located on the northeast corner of Loop 360 and Bee Caves Rd. In the same center as Frost Bank and Westlake Hospital. (I also recommend that emergency room. I've been in and out of there in 45 minutes!)
Good luck, and get plenty of rest (if you can).