So im a little confused about all of this. I have a friend who used to work at a vet and I asked him if my dog has went in heat yet or when she will since she is now 9 1/2 months old! And he told me she may have and I just never noticed! B/c they will lick up the blood and it wont be visible for me to see on the carpet etc. which is usually how people can tell. And also I haven't really noticed her being swollen down there. I dont know what it looks like normally or what a swollen one would look like? LOL If anyone could please give me any advice I would appreciate it!