This is not a panacea. If you are familiar with Biology, then you know nothing goes to waste. Studies have found that the fetus helps pregnant mothers to overcome some organ failure. This could explain why half of women who develop heart weakness during pregnancy, or shortly after, recover unexpectedly.
One such study involved mating normal female mice with males genetically engineered to produce a green-fluorescing protein in all their body cells. Half the resulting fetuses also produced this protein, which made it easy to discern any fetal tissue in the mother. A team of scientists from the Mount Sinai School of Medicine in New York, led by Hina Chaudhry, inflicted a heart attack on the pregnant mice before killing them a fortnight later to observe the effect on their hearts.
Some fluorescent cells were found in the damaged heart tissue of the mothers, where repair was hastened by transformation into new heart cells, which included blood vessel cells and among others. The researchers observed that the fetus promotes its own survival by protecting the heart of its mother.
Previous research has also identified fetal stem cells in other damaged organs of pregnant women, including the liver, kidney, lung and even the brain. Fetuses also produce cells that are known to shield the mother from breast cancer.