Pregnant Dogs Nipples What Does It Mean If A Pregnant Dog's Nipples Are Wrinkly?

What does it mean if a pregnant dog's nipples are wrinkly? - pregnant dogs nipples

On the day after Thanksgiving, my husband and I got a dog that will be slaughtered. We plan to promote a good home to be found. We knew it was not sterilized and planned to quickly your sterilized. But she soon discovered she was pregnant. We do not know when she became pregnant. But her nipples are bigger. Both are safe again, but the other six are wrinkled, but still increased. The vet says it's an older dog. Wrinkliness Is this normal? Will this change as they fill with milk?