you may want to ask all of this in the breeders forum. I don't know about the symptoms. However, by 4 weeks along or around 28 days you should be able to lay your dog on her side and gently feel around on her tummy with one hand on her tummy and one on her back and if there are pupps in there you should be able to feel small "golf balls". Please be very careful not to squeze anything too hard. Hope this helps
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