My Shar pei had a litter 3 weeks ago. When the puppies are weaned will her nipples get smaller or will they?

The bitches nipples will shrink a bit, but they wont go back to the same way they used to be. Once her milk has started drying up and you have weaned the pups, she needs to go back to her pre-pregnancy diet and exercise routine and her body will do the rest. She will take up to 12 months to get back to her pre-pregnancy condition physically and mentally