Okay so my dog Ruby has been to stud, she has come back very different she is much more calm which is lovely, now I have looked on the internet trying to find out how to tell your dog is in pup, all I keep getting is you can not tell unless you go to the vet. Well I have noticed apart from her more calm personality that her nipples are very prominant and rather plump looking, they are normally very tiny and well, shrivelled. To me that tell me she must be in pup, even when she is in season her nipple dont do this. She has only been back with us for just under 2 weeks. So any of you that breed dogs have you noticed these signs when your dogs are pregnant?