Worth noting, if calling UK abortion law "the most permissive", that it is actually still technically illegal to choose to have an abortion just because you don't wish to give birth. You need a medical reason to get one, luckily most doctors agree with the logic of "my mental health will be harmed if I can't have an abortion" so generally speaking it's effectively legal...
But there are still stories of women getting arrested and prosecuted for having abortions, eg https://www.huffingtonpost.co.uk/entry/why-women-in-uk-face-...