With only 4 days left in the Illinois regular legislative session, supporters of a stalled gay marriage bill on Tuesday continued to press for a vote.

The proposed legislation which would make Illinois the 13th state to legalize such unions stalled in the House after passage on Valentine's Day in the Senate.

Earlier this month, Governor Pat Quinn called on lawmakers to vote on the measure.

“It's time to vote,” Quinn said. “Illinois passing marriage equality into law, I think, sends a great signal to the people of our state and the people of America. So it's important to Illinois [that] the House of Representatives get going.”

The bill's champion in the House, Democratic Rep. Greg Harris, has maintained that he would not call a vote on the measure until he had the 60 votes needed for passage.

Harris, who also shepherded the state's civil unions bill through the House two years ago, has yet to say whether the bill would be debated before Friday.

Still, advocates insist they have the votes needed for the bill to clear the House.

“I believe we're there,” Rick Garcia, policy adviser for The Civil Rights Agenda, told gay weekly Windy City Media Group. “The cake is baked. We're waiting for the icing.”

On Tuesday, the Human Rights Campaign (HRC), the nation's largest LGBT rights advocate, called on members to text a message of support to three friends.

If the marriage law is approved, Illinois would become the 13th state to legalize such unions, the fourth this year and only the third in the Midwest.