The Register reports the law was to take effect July 1 after Gov. Kim Reynolds signed the bill on May 4.
The law bans all abortions after a fetal heartbeat is detected, usually about six weeks into a pregnancy.
A Friday hearing in Iowa's Polk County District Court was to ask a judge to temporarily block the law, the Register reports.
District Court Judge Michael Huppert granted the temporary injunction after lawyers with the state didn't raise any objections.
According to the Register's report, the injunction stops the law from being enforced while litigation goes through the courts, but doesn't permanently stop the law.
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