Nope. Constitutional question. If you don't like birth and viability as the boundary of personhood, get your Republican congress to enact an earlier. But don't ask the states to, they are constitutionally incompetent on that question, as they show every time they try to do voter limitation, TRAP laws, anti-gay wedding regulation, et al. I would give up on the first trimester. Giving legal standing to any first trimester fetus gives it to all of them, making dealing with miscarriages complicated unless you are a predatory Ave Maria law grad. I would say 25 weeks is the earliest assisted viability has a good prognosis. Earlier than that and the child has permanent disabilities, but between 14 weeks and 24 weeks you could insist on induction only. No more salt or dismembering.