It comes after the BBC revealed how law firms and advisers are helping migrants pretend to be gay to stay in the UK.
The BBC exposes a shadow industry charging migrants thousands of pounds to help them cheat the asylum system.
It follows a warning from the US president that America's trade deal with the UK "can always be changed".
The woman and her unborn child died in a crash with a police car in Kidbrooke, south-east London.
The BBC's interim director general says the cuts will require "some big and some difficult choices".