Nurse Kits Cat's Nipples Prominent... Does This Mean She's Nursing Her Kits?

Cat's Nipples prominent... does this mean she's nursing her kits? - nurse kits

I have a cat who is approximately 1 years (we're not sure we could find if it produces a few months.) We know that she was pregnant, but she gave birth. We could not find the kitten. This is about 3 weeks, which we discovered, it was no longer pregnant. We believe that the left, but her nipples are very important. Does this mean that he has been caring for cats?