I never had this happen until about a year ago. We also have a yellow bitch (what is it with these yellow girls? - LOL) that didn't have her first season until age 26 months. She had a normal season, then cycled again at almost exactly 6 months. We are now waiting for season 2 - she's due within a month if she stays on 6 months. Her mother alternates - 6 months, 7 months, 6 months, 7 months just like clockwork.

The chocolate line that i have come into season very late. My choco girl, Jojo, didn't come into season until she was 2.5 yrs old. I kept a bitch from Jojo's first litter and the pup will be 2 in april and she hasn't come into season yet. Just wait it out it'll happen.