Abortion is difficult and painful for the unborn child. Surgeon Robert P. N. Shearin
states that: 
As early as eight to ten weeks after conception, and definitely by thirteen-and-a-half weeks, the unborn experiences organic pain….
First, the unborn child's mouth, at eight weeks, then her hands at ten weeks, then her face, arms, and legs at eleven weeks become sensitive to touch. By thirteen-and-a-half weeks, she responds to pain at all levels of her nervous system in an integrated response which cannot be termed a mere reflex. She can now experience pain.
President Ronald Reagan stated in 1984 that during an abortion:
The fetus feels pain which is long and agonizing.
After President Ronald Reagan said this then it set off a furious reaction by pro-choice advocates. They did not want to believe this, nor did they want the public to believe it. But twenty-six medical authorities, including two past presidents of the American College of Obstetricians and Gynecologists, stepped forward with a letter documenting that the unborn does in fact feel pain during an abortion.
Their letter says in part: 
Mr. President, in drawing attention to the capability of the human fetus to feel pain, you stand on firmly established ground…. That the unborn, the prematurely born, and the new-born of the human species is a highly complex, sentient, functioning, individual organism is established scientific fact…. Over the last eighteen years, real time ultrasonography, fetoscopy, study of the fetal EKG [electrocardiogram] and the fetal EEG [electroencephalogram] have demonstrated the remarkable responsiveness of the human fetus to pain, touch, and sound.
Pioneer fetologist Albert Iiley, of the University of Auckland, says that by the fifty-sixth day after conception, the baby's spinal reflexes are sufficiently developed to feel pain.
He adds: 
When doctors first began invading the sanctuary of the womb, they did not know that the unborn baby would react to pain in the same fashion as a child would. But they soon learned he did.
Dr. Liley's observation is graphically demonstrated in Dr. Bernard Nathanson's classic film, The Silent Scream, the first widely circulated ultrasound of an actual abortion.  It shows a child serenely resting in her mother's womb. Suddenly the child is alarmed because of the intruding abortion device. She moves as far away as she can, trying desperately to save her life. Just before her body is torn to pieces and sucked out through the vacuum tube, her tiny mouth opens in an unheard scream of terror. After the abortion the doctor who performed it was invited to view the ultrasound. He was so upset with what he saw that he left the room. Though he had performed over ten thousand abortions, he never performed another one. 
Fact #13: The 8 week+ unborn baby feels real physical pain during an abortion.