I live in the US in a Midwestern state with one Planned Parenthood abortion clinic which is constantly threatened with being closed down. My local PP does not perform abortions, and just does contraceptives and healthcare but a few months back someone set fire to it. We have a heartbeat law. Much of the state has to drive 2+ hours to receive an abortion.
Everything you say OP suggests you're buying into the anti-abortion propaganda. You might not be totally against it, but you're repeating the arguments that make choice a living hell for many women. Those arguments are designed to appeal to the masses. By posting this thread and saying it "doesn't sit comfortably with your views" you are reinforcing the judgement mentality.
You've raised the "abortion is not contraception" line too. Here in the US where Planned Parenthood operates, there are HUGE movements to restrict women's access to education. In some states, schools can only teach abstinence. Read about the Hobby Lobby ruling- religious employers have an ACA exemption allowing them to not cover female contraceptives.
What do you think that does to the unplanned pregnancy rate, OP? How do you think those women feel when find themselves pregnant?
You've had the good fortune not to need to make this choice, but the privilege of the choice being there. But that's only your life, your circumstances and your opinions.
Women in the UK have a choice, let's keep it that way.