South Thanet MP Laura Sandys will lead the debate on the issue on Thursday.

BBC: Ramsgate demo as MPs about to debate live exports

Announcing her decision, she said she did not feel it was possible to be an MP, an MLA and lead a political party.

BBC: McDonnell may enter SDLP leadership contest

The Labour MP for Crawley argued it would lead to delays for women seeking abortion - which would hit the poorest women the hardest, as they would be required to make several trips to the doctor for counselling.

BBC: NEWS | UK | UK Politics | Bid to change abortion law fails