In my opinion, abortions should be legal for any reason within the first 24 weeks of pregnancy (before the baby is developed enough to be a human). If the mother doesn’t want the baby then they should be able to stop it - no reason needed. And the period should be as long as possible to give them time to make their decision so rushed & thus wrong ones are not made.
In the way of abortions after this period, if the mothers life is in danger, then yes, fair enough. But for no other reason. The current UK law allows this and also if they will have a disability - I believe that no matter what the baby is like, after this 24 week period they should be allowed to live - unless it will cause the mother and probably the baby to die.