Again, this is a natural instinct. When the dam licks the pup, she is also stimulating the newborn to breath. During this time you can help clear away fluids by gently using an infant suction bulb to the mouth and nose. Using a clean soft and small towel, you can carefully wrap the newborn for a moment, gently wiping away fluids without impeding the dam's instinct to lick.
Just as with humans, the placenta will need to be pushed out after the birthing. When the final puppy comes out, the placenta will soon follow. As you may have guessed, the mother Chihuahua may eat this as well. Whether the mother eats the sac, the cord or the placenta, do not stop her as it is a very strong inbred instinct for her to do so. If the dam does not chew the cord to release it, it must be cut with sterilized scissors approximately 1 inch from the stomach and tied off with sterilized thread if it is bleeding.
If a Cesarean is performed, your Chihuahua may experience fur loss as a result of the anesthetics. This is a normal reaction and in time, the coat will grow back. Due to changes in hormonal levels, a heavy shedding
is to be expected after birthing a litter; this is known a 'blowing the coat'.
Remember, if it was a rare occurrence for a Chihuahua to give birth and have healthy puppies, this breed would not be around! Archaeologists estimate that the Chi has been with us at least since 600 AD. Therefore, while there is always a risk of stillborn puppies or a need for medical intervention, most Chihuahuas will be just fine.
Canine False Pregnancy
A Chihuahua can sometimes have a false pregnancy. What does this mean? For reasons unknown, a female dog can have an imbalance of chemicals which triggers her body into "thinking" she is pregnant with puppies. When this happens, the belly can swell, the dog will have an increase in breast tissue and the dog may even begin to produce milk.
If this has happens to your Chihuahua, in about a month or so, these physical symptoms will begin to fade and all will return to normal.
Keeping Your Dog Safe
Do not allow an un-spayed female to leave your sight for a moment. She may enter into her heat season before you notice the signs. A mating can occur if your dog is unsupervised for even a moment and there is a male dog in the area. Males will smell a female in heat for up to 3 miles away. Un- neutered male dogs that are allowed to roam, will sometimes "stake out" a home with a female dog in it, just waiting for an opportunity.
Therefore, if there is even a chance that this happened, it is very important to then bring your dog to the veterinarian. If she was mounted by another dog, and you were not aware of it, you also would not know what breed of dog paired with her.
This makes a vet check very important, as since the Chi is the smallest dog breed in the world, if a larger breed dog mated to her, you and your vet will want to know right away.