As with all dogs, it's normally because they need the toilet.
yes, it is perfecly fine :-)
German Shepherd's are born with naturally floppy ears as their cartilage in their ears has not yet developed enough to support them. Most German Shepherd's ears will stand up eventually, all though there are sometimes Dogs that retain their floppy ears. The vast majority, however, will have erect ears in time.
The ears should rise within 9 months of age. "SOFT" ears are a disqualifying factor only in the show ring.
Scroll down to related links and look at "Images of German Shepherd".
varies, but should be erect by 6 months
6.5-7 inches when erect.
The full adult size of your GSD will depend in large part on the genetic background of its parents. Adult males should range between 24-26" at the shoulder blade, females from 22-24". Males within the standard may weigh anywhere from 65-90 lbs. depending on their bloodlines. Females may weigh anywhere from 50-75 lbs. Although your pup will reach close to adult height by 10-18 months, he will continue to fill out until up to 3 years old.
It's normal. The ears should be erect within nine months of age, however.
They usually start at about 5 months, but they can be as young as three months when they start losing teeth. Don't be surprised if erect ears drop during teething. If they were up before teething they should be back up again once teething is done.
There is a chance that the ears will be 'soft' but chances are it will have erect ears.
Typical length from the knot to the tip is around 8 inches when fully erect.
6 to 9 months