What is the earliest day you have had an ultra sound on your girls to determine pregnancy? I have an appointment for my girl on day 23 past ovulation. I checked my records from previous girls and it seems I ultra sound around 27.
25 to 32 days is the best window, too early and you may not see anything, after 32 days the embryos can over lap. My repro vet will repeat an ultrasound (for no charge) a few days later if we don't see anything at 25 days or so.
