Huge difference between a tissue mass which can survive as a independent human being outside mother’s body and another tissue mass which is impossible to live outside the mother’s body.
My sperms are also a tissue mass...very much living tissue but does not qualify as an independent human being.
But if she comes in when she is only three months pregnant she can just purge herself of this unwanted tissue mass like having a mole removed. At what time, and we need to know to the minute, is the cutoff between wart removal and murder?
This will also answer lots of people's questions about when the divine soul created in the image of God enters this useless tissue mass and makes it a human with the God given rights of life, liberty and the pursuit of happiness.
I'm glad this question is not above your pay grade.