I have two females, both unspayed, one is about a year old (Annie) and the other (Ava) is about two and has had a litter. My question is: Why are Annie's nipples getting larger? This was her first full cycle. I do know a bit about dogs, and my mother used to breed our registered male Golden Retriever, so I have a general idea of some stuff. I usually let them outside without a leash or tie-out (we live in a rural town, not a city) and they always listen and NEVER take off. Ava came in heat, and brought Annie into heat as well. One morning, I let them outside and after they were done going to the bathroom, they ran off. Considering I have a 4 month old baby boy, I couldn't just take after them, so I called my neighbor (who's also my father-in-law) and he got them for me. What I'm trying to say is how could Annie's nipples be getting larger if she wasn't gone longer than 5 or 10 minutes? Like I said, I know a little bit about dog breeding, and if a pair "hook," then the breed is successful, but she wasn't gone nowhere near long enough for her to court, breed, hook, and to let the swelling go down so they could unhook. Are her nipples getting larger because it was her first full heat?
Note: I know I will end up getting some lecture about getting them spayed, so I will let you know you can spare your time lecturing me. I know it prevents overpopulation, diseases, cancers, etc. We are planning to get both Annie and Ava spayed. Our vet said you should wait until after the female has had her first full cycle. And considering we just recently rescued Ava from a fighting organization (they are both pitbulls), we were going to get her spayed as soon as we could.