I’ve always used anti-abortion. Pro-life just isn’t an accurate descriptor, and a “pro-life protest”, or a “pro-life bill” seem like undeserved euphemisms considering what they want. Outlawing executions would be a pro-life bill.
Anti-choice is good too.
In a functioning democracy, a vote should be secret by default, and that should be the social expectation. If you wanna tell people, sure, but not in a way where your actual vote can be proven.