By Nicole Chavez, CNN
Millions of Americans are uncertain about their future as a new health care bill heads to the Senate.
The American Health Care Act would shake things up. It could open the door for insurers to charge sick people and pregnant women much higher premiums.
Under Obamacare, all insurers are required to charge everyone the same premium, despite their medical history. This new version of the bill would weaken protections for those with pre-existing conditions.