[targonrotts]

instead of email back and forth, i would call the breeder, ask these questions, and try to resolve it.
sometimes things can be misunderstood or not communicated right(especially in emails).

yes, it can be possible not to see pups in a ultrasound at 30 days if a small litter, tech not experienced, old equipment(harder to see).
even with the blood test. i have had dogs come back negative at 30 days, and have 12 pups at day 63!
does not always happen, but it has.