Today the number of US non-farm employment change numbers will be released, together with the unemployment rate. Before, at 9:30 UTC+1, the British manufacturing PMI will also be known. GBP/USD is on a short-term uptrend, and on the long-term, it’s near a down trendline. In the last top at yesterday’s London/US session, there was considerable supply, and as in Wednesday's London session prices attempted to rally, it was met by further selling, shown as an upthrust.
Due to this recent weakness, a break of the up trendline would be a good confirmation of a downtrend to come. If the news are positive to GBP/USD however, since there are sellers around 1.441 – 1.444, a whipsaw could occur as these could take the high liquidity as an opportunity to continue shorting.
