Hi, My 20 month old shih tzu is 5 weeks into her pregnancy and has needed to go to the vet today as she has sickness and diahorrea. Its not bad at all (just sick once and diahorrea once also) but she is really off colour in herself. The vet said she had a slight temperature and gave her an antibiotic injection. The vet said that the antibiotic was safe to use in pregnant bitches. I'm not sure what antibiotic she used but will ask tomorrow when I take my dog back for another injection and some tablets. Was just wondering whether anyone has any experience with antibiotics and pregnant dogs?