Reddit reviews My First Day

I work in a used book store and mostly deal with kids' books, and while that's unfamiliar to me (I don't really have time to read the books other than to flip through them for content and condition) I might be able to help, and there's the off chance I may even run across a copy.

Questions for you:

1. When did you see the book?
   
   
2. What decade would you guess this book was published in?
   
   
3. Do you remember a publisher?
   
   
4. Was it photos of animal babies, or illustrations, and if so, what kind (cartoonish vs. realistic)?
   
   
5. Was this a hardcover, softcover or board book (chunky cardboard books for toddlers).
   
   And If you're looking for something along those lines, Animal Dads by Sneed Collard is pretty good.
   
   This is an Amazon suggestion, but My First Day by Steve Jenkins seems pretty close to what you're describing.