11's a very nice first litter, she sounds like a good breeder. Make sure she's very well fed and always has a full water bottle, that's a lot of energy output to nurse 11 fast growing baby rats. I usually handle our newborn rats within 8 to 12 hours to check for genetic/birth defects, count them and make sure everyone has milkbands but my breeder females are all hand tamed so it's never a problem here.