Obamacare open enrollment has begun and you can now sign up for a health insurance plan or change your current plan with no health questions asked. If you already have an Obamcare plan it’s important to log in to Healthcare.com and update your information and compare plans to be sure you still have the right plan for your situation. But don’t delay, the open enrollment only lasts for 45 days and after that you must have a qualifying event in order to change health plans.