Good luck with your pup!
OK, I am just telling you that you need to watch for health problems in a GSD that does not have erect ears early. I have never had a GSD in 35 years with floppy ears at this age. The ones I have seen with this issue often lacked drive, died early, and had many, many health problems.
Now I am worried. Benny's right ear has been up since 12 weeks. They both did the teepee thing for awhile. Then between 17- 18 weeks they were both
up good like the avatar, but then the left flopped. He is a big boy and teething so i was not worried. His parents have great ears and so do all the pups from a previous litter. He is 5 months today. The ear is the least of my worries. I don't want him to be sick and die young. He is my best friend.
His Dad, is imported form Berlin and his mom American.
Here is his pedigree. There is no info on the mom here but I have it. His grandparents omn both sides are in the database.
If both ears are not by 6 months old you should consider finding someone reputable who can help you tape the one that is not up. If you can find someone to do it right , it is very effective. Also, I you didn't mention if he plays hard regularly with other pups or dogs. But, that can knock the ears down too.