Nothing wrong IMO, although you will soon want more variety. Are you also taking supplements?
Another tip: focus on your measurements, how you feel, and don't be concerned too much about the stix; sometimes they will not register a visible color change, even though you are in fact in ketosis. It means only your body is not wasting enough of the ketones being produced to be detectable, especially likely at the rate of dilution of your pee, which may be a lot if you are drinking as much water as you should!
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Susan 49/f 5'7" Start 2-27-06 SW222/11-18-09 @ 160-ish/G135-150ish?? Doin Miles, Flights, & Kid Ketchin'... 2 Ab Chal's; 6WEC#27 slug-Free; & more; 50# LOST in'06- but regained ~20# in '07 in less than 3 weeks! And again early '08 
...Was in HEAVEN -got to 150, for awhile, then got too busy, and gave in too much... and... OK holding pattern "keep it together..."
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OMG how did I fail AGAIN (((on temporary break)))
Sigh ... I'll be back... life isn't always fair 10-07-09
"Goal: First you have to dream of it. Then you have to do it." Author unknown
sheesh