The pound has been under pressure in recent days due to several factors :
Risk aversion: Rising tensions in the Middle East and concerns about a global economic slowdown have led investors to seek safe-haven assets, such as the US dollar. This has put downward pressure on the pound.
Weak UK economic data: Recent data releases have shown that the UK economy is slowing down. This has raised concerns about the Bank of England's (BoE) ability to raise interest rates, which would normally support the pound.
Brexit uncertainty: The UK is still negotiating its trade relationship with the European Union, and there is no clear outcome in sight. This uncertainty is weighing on the pound.