On 13 March 2017, the House of Commons voted by 172 to 142 in favour of a second reading for the Reproductive Health (Access to Terminations) Bill. The bill, introduced by Diana Johnson MP, would decriminalise abortion until the end of the 24th week of pregnancy, meaning that abortion could be performed until the end of the 24th week of pregnancy without the need to satisfy any statutory grounds, or to obtain two doctors’ authorisation. Many campaigners see this bill as a first step toward the longer-term goal of fully decriminalising abortion. 
The prospect of decriminalisation raises a number of interesting and important issues, including an issue which has been neglected in the debates over decriminalisation so far, namely what any change in the law might mean for the right of health professionals to withdraw from participation in abortion on grounds of conscience, under section 4 of the Abortion Act 1967. . . .
Neal M. Abortion decriminalisation and statutory rights of conscience. the bmjopinion [Internet]. 2017 Mar 24.