My whippets mated about 44 days ago, the bitch has been very affectionate, unlike her, a little bit fussy with food but nothing really too bad, apart from that no obvious signs, maybe a bit broader on the back and only slightly swollen nipples.  She has had a litter before and I cannot remember if she showed at this stage, she definitely gave birth on day 60 so surely she would show by now.  Could it be that she might only be having 1 or 2 puppies.  Any advice!