OH man, it is SO easy to get anxious over a baby. When Daniel was born, even though I had been there for MANY births from other mares and at least six that year, the fact that it was my mare and MY baby, I was SO nervous. Thank goodness my mom was there as a buffer for me. I think I asked "Mom is she okay?" about fifty times. She was a maiden, but showed all the signs of a "Typical" mare and not a stereotypical maiden. She showed early, she got a bag in good time, she waxed up, and she foaled right on time, a year and a day after my dog was born.
Do you have any pictures of her from behind or any of her bag? Has she waxed up?
If you would like I can send you pictures of my mare the day before she foaled.