Murder isn't a right
And i say this without religion or politics clouding my judgement, I put those aside and just look at the grim meat hook reality of abortion. Abortion is murdering a human.
A baby is a human being, you can't have an abortion without a baby to abort. If there is no baby then there is nothing to abort.
So what if it's a blob, it's still a person. Once the fertilized egg implants and begins to grow, it's a person that is in the early stages of a 18 to 20 year growth period to becoming an adult.
Unforseen circumstances aside if you just leave that blob alone in 9 months it will be born. Stopping that at any moment intentionally is in fact murdering it.