My doberman was surgically implanted and was taken to the vet on day 28 to be palpated. The vet felt a puppy or something, we waited 4 days and also did blood test which was neg, ( i know they can be false neg with a small litter). My dobe did pink up around 2-3 weeks and has been hand walked everyday. I haven't increased food as I didn't want her to get fat if she wasn't pregnant or the puppy if there was only one. She has gotten very thick in fact about 4-5 inches rounder, her mammary glands are developing and teats are still pink and a little bigger. I'm on day 54 and haven't really felt a puppy, but she could be caring it up high. She is being x-rayed tomorrow. My Question is do you think she is pregnant.