Well, she could be pregnant. Most dogs start going into heat at six months. If your dog is spayed then it must be something else, duh. Does your dog get out of your yard occasionally or do male dogs come into your yard. If so then i hate to break it to you but dogs can get pregnant that early, it doesn't mean they should though.
The German Shepherd breed is known for being loyal and protective.
He/She is probably a German shepherd mix. If you had ever noticed that German Shepherds vary in color and size from one to the other, and had gathered though research that these animals were bred with many types of shepherd dog, with a main cross being the wolf, you might agree that it stands to reason that if fact this dog may actually be a German Shepherd with a different heritage. From what you have said in the question I would say it's a German shepherd Akita mix. :)
The GSD has no natural predator being a domesticated breed of dog.
You should contact your doctor if you are showing signs of being pregnant. (nausea, headaches, backpain, late menstrual cycle, etc) Your doctor will direct you from there.
Of course the German Shepherd. They weigh up to 40Kg, compared to boxers weighing up to 32Kg; German Shepherds have a longer jaw with a bite force of 238psi, whereas the Boxers is 200psi; German Shepherds are more aggressive and would 9 times out of ten tear a boxer to pieces
You should contact your doctor if you are showing signs of being pregnant. (nausea, headaches, backpain, late menstrual cycle, etc) Your doctor will direct you from there.
A well bred German Shepherd should be kind and faithful to it's owners as well as being an affectionate and calm companion.They are also great guarders and will defend their territory bravely.Unfortunately this bravery and protectiveness can get them into trouble as they will spring to their owners defence, many people have gone to give their friend a hug and their Shepherd has taken it wrong as sprung at the hugger.With proper socialization a German Shepherd is excellent around fellow pets, children and other dogs.
Whilst it is possible to breed from a German Shepherd on her first heat cycle, this is NOT advisable. As your dog is still developing at this age, if she becomes pregnant she will have to give her vital nutrients and vitamins to her growing puppies, which would stunt her growth. It may also be damaging to both her physical and mental well-being as she is too young. You should wait until she has had at least three heat cycles before breeding from her.
Every single breed, in fact every single mammal on this earth has both male and female of each gender. You don't have all male dogs being a German Shepherd and no other breed or else they'll all be extinct.
You usually don't start showing until second trimester around month 4-5.
German shepherd dogs are the best at being loyal to their owners and at what they are doing. Especially when they are helping that police and the military when they are looking for bombs or drugs if they're working with police too...
Introducing play break with your German Shepherd will prevent it from whining a lot when excited. This method will also prevent the dog from being very rough with other dogs while playing.