So when I say God is pro-choice, what I mean is that God will allow you the option, but God does say that if you take the option there are consequences.
God doesn't make it physically impossible to choose other than he wants, but again, that doesn't mean he's pro-choice. There are quite a few pro-lifers who aren't to the rabid level of bombing Planned Parenthood and killing doctors who perform abortions. They're not trying to make it impossible to make the choice, they'd just like to see a law that will punish you from doing it.
Punishment, as an attempt to sway the choice, precludes sitting back and allowing the choice to be made either way.
Just to round out the analogy a little more, auto manufacturers have a device that can stall a car if it reaches a certain speed. If the legislature passed a law requiring all vehicles to have that device installed and set at a maximum speed of, say 65 mph (which is the standard speed for most states, I think,) the choice to speed would be taken away. Even if you wanted to, you could not speed. Similarly, if God, and again I will be making some assumptions, really didn't want abortions to happen, I'm sure that God would have done something to ensure that the choice would have been taken away.
You can put governors on a car that will stop it from exceeding a maximum speed, but this doesn't stop you from speeding, it merely limits you as to where you can speed. It does so in a very assbackwards way, too. It stops you from speeding on roads where higher speeds aren't as big a threat, since everyone is going at a high rate of speed, and there aren't as many things that can jump in front of you, requiring fast reflexes to avoid.
What they don't stop you from doing is driving 50 mph down a city street in front of a school.
Laws are, in effect, an attempt to take choices away from you, without actually altering the physical properties that make the choice possible. Laws are essentially anti-choice.