Late-term abortion

Bill proposed to ban most abortions after 20 weeks. I, personally, am pro-choice, but this seems reasonable. I wasn't aware you could have an abortion currently at five months pregnant, but it sounds a bit gruesome. Apparently this time frame has been chosen because this is when experts believe a fetus begins to feel pain. I'm not sure how this information was obtained or if it is valid, but on a strictly reactionary, non-information based level, I agree. Something seems wrong in terminating a 20 week along pregnancy. Maybe individual attention could be given to women in special circumstances. It's difficult because my morals tell me a woman should never be able to be forced to give birth, but at the same time, how do you protect the rights of the fetus? Does it have rights? Does anyone know how far along is too far to legally have an abortion currently?