Ok, since everyone else seems inclined to post their size, I'm 5'7", and weigh 140. Yeah, I'm fairly thin.
And to be very honest, I don't NEED to pocket carry a J-frame revolver; not in jeans pocket, anyway.
It does fit nicely into a coat pocket, and I sometimes carry it there.
I also have an Uncle Mike's neoprene pouch holster designed for IWB, and I cut the belt clip off of it. This way, I can stick the gun/holster inside my tucked in western shirt at 1:00, IWB, and the tension of my belt and the friction of the neoprene keeps it very secure there. I've carried it that way all day, every day for weeks and never had a problem.
Or, I have a Kramer confidant vest that fits under any regular sleeved shirt, and that works fairly well too. With a snap-up western shirt, I can simply run my thumb between the snaps to undo them, and draw fairly quickly.
Or, I have a Galco OWB holster than keeps the gun riding high and tight against my side, and any cover garment, including a loose t-shirt, provides great concealment.
A J-frame is a very easy gun to conceal; use your imagination a bit, and find what works for you.
Daryl