Cutting the other way, it is the technology of stem cell research and cloning (which many right-to-life conservatives want to outlaw) that may be needed to develop a technology that could be used to effectively legally end abortion -- thus creating for such conservatives the moral dilemma of supporting the use of what they judge to be unethical or immoral technologies to end the greatest slaughter of the innocent (millions of abortions a year).
How horribly possible!
Abortion is not about abortion, it is about responsibility-free sex. Gaining the freedom to have sex with an absolute guarantee it will not produce a baby was the biggest "advance" in centuries for a certain type of character. Those who value that "freedom" pretty much value it ABOVE ALL ELSE IN LIFE (and above all lives), though they will never express it that way out loud.
The entire Democratic Party is organized around legal abortion. If you fight to protect abortion they will simply tolerate any other behavior from you.
The Left will do WHATEVER IS NECESSARY to protect that freedom. For example, all the Left has to do is re-define the concept of "viability" -- which they are experts at, since no word is not living and evolving and emanating new penumbras by the second.
It's sad, in a way, to think that our society is polarizing into warring camps over the right to kill babies in their mothers.