My puppy has lymes disease and is having trouble walking just within the last few days.?

please help. any advice is good advise. my puppy is nine months old and i have good reason to believe that he has lymes disease. I just got him a little over a month ago and he just began to show signs of stiffening joints (he limps while walking on his front leg) he shows no sign of other pain though. i cannot get him into a vet until monday and I need to know a few things. judging by his condition, how long has he been exposed, also what special needs should i tend to in the mean time while he cannot see a vet. lastly what should i get done at the vet to help the most? this is very important to me, he is like my child. thank you all for your help!