Hey, Laur, I'm very pro-choice, too, and I feel that if there is a small part of you that wants to have this baby now, a large part of you will regret it later if you don't.
That's not to say it should make the decision for you; regret might just be a price you're able and willing to pay. But unless you're absolutely sure you don't want it, I would give yourself more time to mull it over. You'll probably get an onslaught of very strong opinions here and in the real world, and my very deepest wishes are with you in being true to our own heart in the face of any outside pressure.
Best wishes, Laur.