First you need to decide what gives utility points to you, which is a moral problem.
I consider most computer programs to be sentient, with their work memory being sentience, i also see pain as just a bit of programming that makes creatures avoid things causing it, not different from some regulators i have programmed. Therefore i don´t care if fetuses are sentient or feel pain, so for me that does not affect the utility calculation. But most people do not agree.
First you need to decide what gives utility points to you, which is a moral problem. I consider most computer programs to be sentient, with their work memory being sentience, i also see pain as just a bit of programming that makes creatures avoid things causing it, not different from some regulators i have programmed. Therefore i don´t care if fetuses are sentient or feel pain, so for me that does not affect the utility calculation. But most people do not agree.