Yes, that is what it would mean.
Again, you are correct both on your presentation of how these methods can function and what that would mean if the right to life was legally bestowed on newly conceived people.
Yes, again true.
But I find the fact that the bill existed and was voted on to be absolutely amazing in its historic beginning as a breakthrough proposition.
This means that we're finally addressing at the polls the crux of the matter germane to this thread.
First of all, let's think of it from a scientific standpoint.
Could there be any other rational conclusion than that a unique individual human being begins to live at the moment of conception?
Not really.
Thus, and with respect to the reality of rights, the newly conceived human being deserves equal protection under the law.
As far as superceding rights are concerned, I'm sure that monarchs felt that way about their "special" rights when the people presented the Magna Charta and The English Bill of Rights to them telling the monarchs that they were in error about those special rights of being able to imprison anyone and punish them any way they want for any reason, but the monarchs quickly realized the irrationality of "superceding rights" in the face of a compelling argument. 
When we learn something new, that does indeed change, not only the way we view that something, but how we must immediately begin respecting it from our new and accurate view of reality, and all the behaviors which were set in precedent of old erroneous information must now be quickly corrected.
And, granted, that will be a huge task, but it is a task we are humanely compelled to undertake.
For example, there are pharmaeceutical companies presently testing new generation state-of-the-art conception prevention chemicals that lop off the tails of sperms and thicken to impenetrability the outer membrane of released eggs, among other methods.
There are three philosophies at play here: ontological, epistemological, utilitarian.
It may indeed require all three to be ready to accept the truth of this matter that science presents, especially with regard to utilitarians, as they are more interested in what works for them than in what is the truth and what is right.
