First of all how accurate is the 111 days count?
Usually pretty accurate, but they have been known to deliver between 105 and 120 days and still be considered full term.
second- one of their poop- Im guessing hers- has gotten bigger.... is that normal?
Has there been a change in food for them?
Any changes at all?
Is the poop still firm and moist, or is it getting runny or does it have a mucous covering on it? To find out if it has a mucous covering, you would need to have her on a solid floor (tile or wood) and examine the poop as soon as it is dropped ... do not pick it up ...look at it through a magnifying glass ... is it or any part of it covered in what might look like raw egg white? After you examine it, pick it up with a paper towel or tissue and dispose of it. {If the chin is on the carpet or bedding, all signs of the extra moisture/covering would be absorbed immediately, before you could see it.}
third- about how many kits is normal for a first litter?
That's impossible to answer. As with all litters, one or two kits is the normal number of kits born in each litter ... BUT ... one could have triplets or quads the first litter ... I have had it happen. What you need to look at, is how many kits/siblings were in the litter momma was born and how many kits/siblings were in the litter daddy was born ... these two facts would be more likely to control the number of kits born in a litter , rather than which litter it is.
Jo Ann