1lb is still a good loss. I've had a couple of low weeks and was told sometimes your body needs to catch up with the weight loss and most people find their loss increases the next week.
As for exercise, build it up slowly as, on so few calories, you don't want to make yourself poorly. I do a lot of walking but plan to get back to the fitness videos once all my children are back at school, one down, 2 more to go!!!!!!
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