pregnant dog

My dog is infected with worms n were trying to treat it yet I’ve been bugged by her nipples. They’re not normal, at least to me. Is this normal? Am I overreacting?

Our 11 month old dog named Mika is going to have puppies but I'm not too happy about it. My parents decided to allow her to have them. She'll either have them around the end of this month or around the beginning of next month. Mika is a Dutch Shepherd/German Shepherd/Lab mix. Mooshu(Father of...