24 weeks and the baby is viable. If you had an abortion now, you would be killing a child that more than likely could survive. If you could hold off a couple of weeks even and then ask your doc if they would induce you, you'd more than likely have a baby who after a few months in the nicu could be just fine. If you don't feel capable of taking care of the baby, then think about adoption, there are so many couples out there who would love to preggers but can't be. You be suprised at how quickly it can all be done too. If you can't wait that long ask them to induce now, because your baby has a good chance of survival now. My sister had a baby at 23 weeks he was 1 lb 7 oz and he is fine now, no developmental delays or anything. I urge you to please consider an early delivery, rather than killing a viable human life.
Please don't think I am bashing you about your decisions either. I am just trying to help, I didn't know weather or not you knew that the baby could survive at this point.