Join Date: Apr 2014
Location: Ontario, Canada
When I adopted a stray GSD that was 9 months old, I was told there was no way of knowing if she was neutered until she came/didn't come in heat.
Well, about a month later, she had her first heat!
A neighbourhood dog set up camping outside my front door, and in spite of being shipped off to the pound twice, did not lose interest until her heat cycle was nearly over.
So, yeah, you must supervise her carefully when she's outside. I've even heard of litters being conceived through a chain link fence, not to mention amorous suitors digging under, or climbing over the fence!
If you do walk her during this time, drive her well away from home, carry a good heavy walking stick with you to ward off unwanted advances, and have her wear a panty that will prevent any suitors from tying with her.
I've found panties aren't very good for keeping the house clean. Most of my intact females have wanted to lick themselves to keep clean, so they will tear the panty to pieces. The only one that worked was the one I had for my first female. It was a pad holder with an elastic belt, and she could push the pad aside to clean herself if she wanted to.
If anyone knows where I could find something similar, I'd be VERY happy to buy it!