Hi I've been off for a while and I just had my son dec 1 and would love some answers about my son.

Recently we got to take our son home on Friday and since Saturday night. He has been crying every time I put him down. He stops only when I hold him. Is this normal or should I bring this up to his doctors? Could it be that he's been separated from us for two weeks without contact? I'm not sure what to do?? He'll be a month old on Thursday. I'm going crazy!!😩😩😩