Ac broke

So our ac just died and they can’t get anyone here until July 3rd and I think that’s just to diagnose the problem. I’m due July 5. I’m nervous I’m going to have to bring him home to a hot house 😩 I’m a ftm and am still confused on proper dressing for the temp and if it isn’t fixed by the time he’s here is it ok to have a fan on him while he sleeps? I don’t want him to over heat. I’m in Ohio so our heat isn’t as bad as some places we are in the high 80’s low 90’s at this point. Any advice?