6 months isn't early, it's pretty normal for GSD's. The ones that go into their first heat later are late bloomers. Yours isn't an early bloomer.Just my luck she's an early one, I've fixed all my non GSDs early and now the first dog I've waited on in a while go into season b4 6 months! (she'll be 6 months on the 13th)
Hmmm.... I wonder?? Blitz is very mature mentally, even now at a half a year she doesnt act at all like a puppy and has a very long attention span.....I've often wondered if the ones that have their first heat later like Mia, mature slower both mentally and physically? Mia still acts a little mentally immature. Although, she is only 15 months old. Our other GSD who came into her first season at 6 months, seemed to mature a whole lot quicker mentally than Mia. I guess I'm comparing her to Dakota.