Hershey is almost 7 months old, and his only indication is his body language, we went 3 weeks without an accident, and I thought.. .ALL RIGHT ! finally ! then 3 accidents in 2 days. so its back to ground zero.
He is a very young puppy, so you can not expect too much out of him, there is a book out there called "how to Housebreak your dog in 7 days' YEA RIGHT ! however, it stresses SCHEDULE..
type of schedule... very strict..however its only a guide.
I'm a stay at home dad, so the puppy months, I'm here to let him out and feed on a schedule. (yea...well in the beginning!) but you will learn your puppy's behavior, and see the keys. Feed take him out, get him up, take him out, play with him, take him out, before he goes to sleep, take him out. KENNEL TRAIN HIM IS CRITICAL , not only does it protect the house from the puppy, but it protects the puppy from the house ! (electrical wires etc)
be patient, and if you can't supervise him totally, have him in his kennel or Xpen area. I would have to run into the bathroom and I'd put him up, because I didnt want to risk an accident !