Under the NHS, there is no specified threshold with regard to the number of abortions a woman can have. The conditions necessitating such a medical procedure, as per the UK law, determine whether or not an abortion can be performed.
The NHS handles cases of abortion according to UK law and the Abortion Act of 1967. This act outlines the conditions in which an abortion may occur. For instance, the law requires that an abortion be carried out within the first 24 weeks of pregnancy; it must be performed in a licensed clinic or hospital, and at least two doctors ought to be in agreement that the procedure is necessary for the welfare of the pregnant woman.