Last year's litter a momma? am I to take it that the mother is only around 12 months old? I didn't even think that was possible. Oh, and there are no surprises if you keep the sexes separate. If you don't, then the litter shouldn't be a surprise at all, other than her age. That is weird.
The fact that the snakes were so young was the only reason that they were housed together. I have certainly learned that anything is possible with gartersnakes. Looks like I'll be splitting the sexes earlier this time around.
When I was breeding checkerds most of my females were breeder size in one year. Nothing unusual there. I also fed the babies chopped up unscented pinky parts from the first feeding. You should try that, they seem to like it better than worms.
Good luck with them.
Ed
I always try unscented pinky parts just for the heck of it. Not a single snake showed interest. The ones that are eating well are taking pinky parts though.