Hi there!
I'm also in Austin, TX (TX Fertility Center) and I'm starting my first IVF round. I'm currently on Day 7 of BCPs... I'm supposed to get a call from my IVF nurse today about my protocol!!! I'm really excited AND nervous at the same time. I'm sure you all understand the feeling!

So far, the BCPs have made me really nauseous, but no BB pain, thank goodness! I did have to leave work one day last week, because I got pretty sick. I think it's a combination of the BCPs with the antibiotics. My Day 3 FSH level and estradiol came back really good, so I was excited about that! Phew!!!
I've been reading through the posts... I have Mild Stage 2 Endometriosis, and we recently found out my DH might have a male fertility factor. It's really odd, because when all of our IUIs were performed (with my OBGYN), he had a great sperm analysis; however, when we did the one IUI through TX Fertility Center, it was really, really low with poor morphology and motility. Maybe they just wash the SA differently at the Fertility Center? You can read our full story by clicking the LiveJournal link in my signature line below. I decided to start that blog as an outlet... it's really been therapeutic for me to write about it!
Anyway, Staying Hopeful, I too have a really light period and worry about that. My lining is always around 7 - 8 mm. My period has definitely gotten lighter with age. It lasts about 2 full days with a day or two of spotting!
Good luck and lots of sticky dust and prayers to all of you! I'm rooting for you! ;o)