I was just wondering ,if any of you have bred or know someone who bred their yorkie,how did you tell if the yorkie was pregnant? My Aunt's Yorkie went through artificial insemination about a month ago,she says she hasnt grown but her appetite has changed her nipples(is that correct?) have become hard and that she has become more attached.Is that just coincedence or signs of pregnancy? Is there any way to tell for sure if she is pregnant?Thank you in advance.