I just brought home a new foster dog, and I think she might be pregnant. her belly is pretty big, and it is really hard. she is not pear shaped or sticking out on her sides though. I took a pic, but you cannot tell much by looking at the pic. and this stage, when she is not really showing but does have a hard belly how far along do you think she would be. and remind me, how long are the pregnant for. i cannot have a foster dog and a litter of pups! I might have to return her if she ends up pregnant AND a long term foster.