The only way that could be a problem for you is if you agree with Blackmun that the child in the womb is not a person.
But even then, there is the Ninth Amendment. Ever read it?
In matters of constitutional interpretation, it doesn't matter what I believe. What matters is what was understood and intended by the people who wrote and ratified the Constitution and it's Amendments. That's the whole point of "origianal intent".
If I believe something that is different than what they intended or did not address at all, then I have at my disposal the process of amendment to change the Constitution and rectify that. Once that's done, that Amendment then needs to be interpreted according to what I, and the people who wrote and ratified it intended.