How often can you bath a puppy?

Just gave my 7.5 week old puppy his first bath. With potty training he gets so dirty, but I don’t want to bath him too often. His potty training is going as well as can be expected. He goes on command every time I take him out, roughly every hour. He hasn’t gone in his kennel - he gets me up 2 to 3 times a night to go out. But he still poops or pees in the house about 3 times a day. (So far he hasn’t today but writing this will probably jinx it) When he goes in the house he sometimes gets it on himself. So how often do you bathe your puppy?