Hello and God bless you for helping your son with this dilemma!
First, your son can point out that the baby’s body is not the mothers. The mother has every right to do what she want; that baby is a living human being. Then if the baby is a girl, and when she becomes an adult, she too can decide what to do with HER body.
Second, be sure your son is armed with the developmental stages:
Day 6: embryo begins implantation in the uterus.
Day 22: heart begins to beat with the child’s own blood, often a different type than the mothers’.
Week 3: By the end of third week the child’s backbone spinal column and nervous system are forming. The liver, kidneys and intestines begin to take shape.
Week 4: By the end of week four the child is ten thousand times larger than the fertilized egg.
Week 5: Eyes, legs, and hands begin to develop.
** Week 6:** Brain waves are detectable; mouth and lips are present; fingernails are forming.
Code:
**Week 7: ** Eyelids, and toes form, nose distinct. The baby is kicking and swimming.
**Week 8:** Every organ is in place, bones begin to replace cartilage, and fingerprints begin to form. By the 8th week the baby can begin to hear.
** Weeks 9 and 10:** Teeth begin to form, fingernails develop. The baby can turn his head, and frown. The baby can hiccup.
** Weeks 10 and 11:** The baby can “breathe” amniotic fluid and urinate. Week 11 the baby can grasp objects placed in its hand; all organ systems are functioning. The baby has a skeletal structure, nerves, and circulation.
Week 12: ** The baby has all of the parts necessary to experience pain, including nerves, spinal cord, and thalamus. Vocal cords are complete. The baby can suck its thumb. ** Week 14: At this age, the heart pumps several quarts of blood through the body every day.
Week 15: The baby has an adult’s taste buds.
** Month 4:** Bone Marrow is now beginning to form. The heart is pumping 25 quarts of blood a day. By the end of month 4 the baby will be 8-10 inches in length and will weigh up to half a pound.
etc, etc.
Also, you need to help your son share with this young lady that woman and girls do have a choice. The time for choosing comes BEFORE the couple remove their clothing. Once they have passed that line, the lot is cast and they must accept the consequences of that choice.