[OliviaMarie]

Okay so my Yorkie just went through her first heat, she is just over a year old. I have put off fixing her for who knows what reason. I kept her completely seperate from my two boys the whole time. She is back to normal but she is exhibiting some unusual behavaiors. Her nipples are very swollen but her abdomen doesn't look any different and I am not sure if it is far enough along to even tell if she is pregnant...not that I am sure how she would have got that way in the first place as she was NEVER unsupervised. The other signs I have read do not seem to point to pregnant either as her vagina is back to a normal size. She has also started humping the two boys....she has occasionaly done this in the past but now it is almost a constant. I just wondered if any of this was normal or if I should be concerned.