Senate Majority Leader Bart Davis told colleagues he'd stick with his promise of a noon adjournment.
That means debate on one of the session's most-disputed measures will be pushed back to next week.
The legislation cleared the Senate State Affairs Committee on Wednesday on a 7-2 vote after hundreds packed the Capitol.
Advocates hope adding to abortion hurdles will encourage women to opt against such procedures, while foes argue fiercely this is nothing more than an intrusion into the private lives of women facing a heart-wrenching choice.
Several states have adopted similar measures, including Texas, which has been lampooned in the comic "Doonesbury" over its law.
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