Nothing to worry about. I've seen them go months with out going. As for the soaking behavior, it's not unheard of for a BP to a "soaker", but it would be a good time to check the temps, humidity, and for mites. If every thing is up to par, you might just have a swimmer on your hands. If your snake doesn't have sausage butt, I don't think you have any constipation issues.