RE: I regret getting a puppy and I don't know what to do.
I'm sorry that you regret getting your puppy. Pets take a lot of care and responsibility and it is apparent that you are not willing or ready to do either for the puppy. Please do not ever take this out on the puppy because it is not his fault. Talk to your boyfriend and explain to him that you are not ready for this puppy and you feel that you would not be able to enjoy having the pup.
If your boyfriend does not agree with you then explain to him that you will not be responsible for the puppy and he will have to do all the caring for the pup. Maybe your boyfriend will realize that you both have too much to do and can not keep him. Will his family accept the puppy back into their home? If so, that would be ideal until a new home can be found. I do hope it works out in the puppy's favor. No offense to you or your boyfriend at all..it is just that the puppy is the innocent party and I don't want to see him homeless.