Basically, as long as women could actually get abortion, the average voter had no problem in stating that they would be willing to support restrictions on abortion after 15 weeks.
That's where I am at. If abortion was accessible (like easily scheduled within a week or two, plenty of locations to get it done and not requiring multiple visits/waiting periods) I would have zero qualms about a nationwide 15 week limit. <Insert caveats on life of mother and strong protections for doctors who make the call that the mother's life is in danger>
Though that would also require trusting Republicans to not whittle away at that time frame... which makes me uneasy.
I think 15 weeks is more than enough