The argument is not CHOICE, it is LIFE.
Life always takes precedent over choice in all other areas. I cannot choose to do whatever I want with impunity, if it harms another's life. But try and get a prodeath person to define life and you can't do it. Because if they agree to that line of reasoning, their argument is a house of cards.
IMO a woman should be forced to be a mother at least until the child is born, if a man can be forced to be a father and pay child support for 18 years. The decision should always place the convenience of the people involved WAY behind the importance of the life of the child.