I have never bred but have been researching & I print out all kinds of info & make notes for time lines for from moms heat all the way thru the pups birth & formula recipes, puppy developement etc. The research helps. I dont remember the site I used but heres one that you can see when the eyes generally open etc.
http://www.chihuahualoving.com/PuppyGrowthStages.html
What a sweet little pup. Good Luck w/everything.
