Roxy - who is just over 8 months old, has been in season for the first time since last week, after searching on COL all the usual symptoms seem to be present but I can't seem to find anything re enlarged nipples - hers are quite a bit bigger and hard - are enlarged nipples normal for a bitch in season or could this be a symptom of a phantom pregnancy. She seems to be fine in every other respect. Sorry to appear so clueless but she is my first dog. Hope someone can put my mind at rest.