If the placenta don't function the embryo will die.
After a miscarriage at 12 weeks, the placenta typically does not pulsate. Once the pregnancy ends and the fetus is no longer viable, the placental blood flow ceases, and the placenta will gradually begin to separate and be expelled from the body. Any residual pulsation might be due to blood flow in the mother's body, but the placenta itself would not exhibit pulsation similar to that during a viable pregnancy.
Placenta gets damaged by toxins like alcohol or chemicals from cigarettes. This leads to prevention of blood from mixing and/or an affected child by transportation of toxins from mother to child.
Death would occur.
The most common causes of slight spotting during pregnancy are implantation bleeding, miscarriage, ectopic pregnancy, placenta previa, and placental abruption.
it results would be the inability to produce oils
Spotting during pregnancy can occur about the time you would usually have a period. However, with a miscarriage there is more active bleeding and tissue is passed with abdominal cramping. Just spotting does not indicate a miscarriage.
Yes you can. The concern would be what caused your miscarraige and is it likely to cause one again and scar tissue in your uterus from previous abortion. Scar tissue can cause the placenta from attaching correctly.
The cells lining the small intestine would be damaged.
No, a miscarriage cannot occur before implantation because a miscarriage refers to the loss of a pregnancy after implantation has taken place. Before implantation, the fertilized egg is still traveling down the fallopian tube and has not yet attached to the uterine lining. Therefore, any disruption at that stage would prevent implantation rather than result in a miscarriage.
development of a rapid heart beat
It would leak power steering fluid out of the gear box.
If a chicken had a miscarriage there would be no egg, that would be like asking what to do with the baby I had after I miscarried...