It all depends on how much puppy the dog is have 3 weeks is 21 days and pregnancy starts to show around 24-29 days so maybe it will or may it will not.
If your vet has an ultrasound you can do that around the three week mark but sometimes better to wait until day 26 - 30 at least. You can also have your vet run a quick blood test and then do your visual's later in to check that all is proceeding as it should and to spot potential problem's with the whelp.
www.askabreeder.com www.learntobreed.com www.dogbreedinfo.com www.lowchensaustralia.com http://drnelsonsveterinaryblog.com/2009/01/01/canine-labor--when-to-call-the-vet.aspx www.justanswer.com www.dogfoodanalysis.com
www.askabreeder.com www.learntobreed.com www.dogbreedinfo.com www.lowchensaustralia.com http://drnelsonsveterinaryblog.com/2009/01/01/canine-labor--when-to-call-the-vet.aspx www.justanswer.com www.dogfoodanalysis.com