There are many reasons why a mother cat might whine after giving birth. It could be due to pain from excessive exertion during labor. In this case, the owner doesn't need to worry too much. Just observe the cat's condition. As long as there is no bleeding or other symptoms, you just need to take good care of her. The pain will subside after a while.

Secondly, a mother cat whimpering after giving birth could also be due to insecurity. In this case, the owner must provide the cat with ample security, including plenty of food and water, and plenty of petting to reassure her. It could also be a cry for help, as the weather might be cold and the cat feels the environment is unfavorable for the kittens' survival. Regardless of the reason, the owner must address the issue promptly.