Not really, according to This there are over 30,000 denominations. Besides, only a multiplicity of two would be enough to make the point.
Since no blood from the woman donor goes into the fetus, and the womb is like a fleshy eggshell, that doesn't leave traces of itself on that which was in it, how can this make the fetus unclean as you imply?
Cindy, see here somewhere where it makes a difference.
Jim, if you want to believe that a fetus is unrelated to its mother, that is your perogative.
Just remember that we believe otherwise. That Jesus inherits His humanity from His mother. It is this inheritance that we are concerned with, not with the exchange of blood to the fetus.
SD
Hi conservonator, good to see you!
If you read the article I linked, it all depends upon the criteria chosen. Catholics who use the 30,000 figure to criticize Protestants use the loosest definition of "denomination" possible, in order to exaggerate the results. If I wanted to, I could come up with some sort of criteria to give me several, or dozens, or hundreds of "denominations" within the Catholic church.
Doesn't really matter much to me. But the 30,000 figure is simply dishonest.