The problem is, under Roe v. Wade this is a legal non-starter.
Trust me, my thoughts and prayers are with you, but this is not going to meet current SCOTUS muster. Courts do not like “tricky” legislation.
It’s also unenforceable. How does the woman guarnate she knows who impregnated her? If any man can sign the “permission,” then there will be flocks of liberals willing to do so for any woman.
The bottom line, reverse Roe and send the issue back to the states where it belongs.
Dead babies can still tell with their DNA who daddy was. If the daddy didn’t give permission, the woman should have to answer as to why she lied. Of course, there are sluts on Maury who go back for DNA tests half a dozen times.