Yes, between 6-9 months you'll see blood spots around the house and yard. She will be a little crazy because her hormones are telling her to mate. It's best to have her spayed before she reaches this stage.
1 year ago
Last edited at 6:28PM on 2/2/2012
Yes they do It's called being in "heat" or their estrous cycle When they start and stop or for how long is as unique to a dog as it is for people. However, this will only occur about every 6 months or so