Ahmm I know earlier there was not a problem since we could work on implied status but these days CIC is sending a new letter along implied one giving 4 months period and informing to use that for employment reasons. So that's worrisome. What if WP arrives past 4 months. Earlier there was no time limit on implied status but now there is one.Recently BOWP taking around 5 months to complete. Nothing need to worry when you wait the work permit. You can still keep working here.