The cost to set up Connect for Health was paid almost entirely by federal grants. Those grants run out next year.
The state's insurance commissioner has set up a task force to review costs and may also propose state-funded subsidies.
The number is less than initial goals anticipated, but still good compared with other states in general.
They say they're prepared to go to federal court if state regulators don't take action.
Researchers in Colorado believe the historically low fertility rate is connected the a rise in overweight women and men.
About 1000 people a day are signing up for new Medicaid benefits in Colorado under the Affordable Care Act.