Perhaps you do not realize that the most commonly used birth control pills are a combination of female hormones (estrogen and progesterone) that prevent ovulation, basically making the body “think” it is pregnant all the time, thus preventing the release of an egg to be fertilized.
I know very well the text of the ballot initiative and amendment—I voted on it yesterday here in Mississippi.
The pill does three things.
1) Prevents ovulation most of the time.
2) Thickens cervical mucus which prevents sperm from reaching the egg.
3) Reduces the thickness of the uterus lining which prevents implantation of fertilized eggs.
The pill can fail at steps 1 and 2. Otherwise, pill use would be as effective as abstinence.
The pill does #3. It prevents implantation of a fertilized egg. The morning after pill is essentially a triple dose of regular birth control to do exactly that.
Do you have an example of any hormonal birth control which does NOT reduce the likelihood of the implantation of a fertilized egg?
You seem to be avoiding the point completely that an egg can still be released from the ovaries while a woman is taking the pill. Calling the fertilized egg a person means the pill has the explicit effect of killing that person.