Today is the third time I've found bright green poo from my female Harley. I mean so bright that I thought it had to have been ink bleeding from the newspaper she's on at first. I've got her separated from the male right now because she went blue a couple days ago and hasn't seemed interested in company while she's in shed, and also to monitor this more closely. In over ten years of seeing garter poo, this is just so bizarre I'm going to go ahead and get it checked out.

Anyway, I got a sample and I'm going to take it to the vet to get a fecal done tomorrow. It'll be interesting to see what, if anything, shows up.
Her poo turned some pretty strange grays last year when she was dealing with parasites as well as producing a litter of slugs... Hopefully this is just due to different nutrients being used up from shedding and potentially being gravid, but I'd rather address this now than wait until symptoms show up and potentially complicate the pregnancy.