Hello everyone, I just need some input. we have 3 yr old shihtzu and I aint sure if she is pregnant i tried taking her to the vet but he said I should wait 45 days before they do an xray.. well here is my problem. One day I can feel something moving inside then there has been a few days where I don't feel anything. Then again a start feeling something again. How do I know if it is gas or not? I don't know yet if it is a true pregnancy or a false one. how can I tell?