My dog gave birth to 4 beautiful puppies at some point overnight. Sadly we lost three of them to the cold. We didn't realize she was pregnant (She just looked like she was eating well.....not like she was about to have a litter) and it was just too cold outside for them to stay warm overnight.

Momma sleeps in the garage in an old recliner, but it looks like she was pushing them into the back of the chair trying to keep them warm and they were falling through to the floor. She couldn't get to them and even though they all cuddled together, the cold was still too much.
We were able to save one of them though. Now baby and momma are living in my pantry/laundry room until baby is weaned. After that momma will have to go back outside because she just can't be house trained. She had been an outside dog for years and just too old to learn (we thought she was too old for pups too!).
Here is Lady (momma)
And here is baby Nuevo (we decided it was appropriate considering the birth date)