I agree, it is very common. My metabolism and my body are insane, so I didn't have that "stall" until my 6th week. :/

However it did allow my skin to catch up with all the weight I'd lost. I had loose skin all over me. So I think it's a good thing. I'm starting to get that way again now, so maybe in a few weeks I'll have another week like that. My chest is all saggy and it's so embarrassing.. I mean.. I'm 20!