It sounds like you should have done your research BEFORE you bred your dog. I recommend that you look up some websites about dog breeding. I hope that you DO know how many problems a chihuahua can have with whelping.
chihuahuas surprisingly dont have as much problems as any other breed of dog i know many breeders whos chis as small as two lbs can actually have a litter freely whelping and i as a chihuahua breeder also know that they dont have as many probs as people think.
If I had knew then... what I know now (Cinnamon would pass 24 hours after whelping).... I would not have even considered breeding my 5.5 pound Chihuahua. I regret not having her spayed sooner. It is my own fault for wanting her to have just one litter before I spayed her. I wanted to keep one of her babies... and I am since she gave birth to 6 puppies which have all made it so far. But I would trade every one of those six puppies to have Cinnamon back.