Hmmm, Havoc does look a little thicker about the middle. But is that because there are pups in there, or is it because we ran out of raw, so for the past couple of days she has been eating salmon steaks and spagetti? 🙂 Harder to tell with Fysti, because she is both hairy and rather chucky to start with.
I am leaning toward an ultrasound for both of them, which can be done at about a month (in about two weeks). If neithor one still looks promising at that point it will help rule out the one pup hiding scenario, even if Havoc has "shown" herself at that point it will still help to know numbers.