A 29-year-old terminally ill woman who planned to take her life on Nov. 1 is suggesting she may wait a little longer.

Brittany Maynard, who has an inoperable cancerous tumour in her brain, became the subject of a viral media campaign launched earlier this month by Compassion & Choices. The group is working to convince U.S. lawmakers to expand the death-with-dignity laws in Oregon across the country.

Maynard said earlier this month that she expected to end her own life no later than this Saturday, Nov. 1, if the cancer didn't kill her first.

But in a new video published Wednesday, Maynard says she is still feeling well and hasn't yet decided if she will follow that plan.

"I still feel good enough, and I still have enough joy, and I still laugh and smile with my friends and family enough that it doesn't seem like the right time right now," she says, adding, "But it will come because I feel myself getting sicker. It's happening each week."

Maynard has said she isn't suicidal; she does want to live. But since she was told in the spring that the cancer will likely kill her within six months, she has decided she wants to die on her own terms.

Maynard says in the video that if by Nov. 2 she is still alive, it won't mean that she's changed her mind about wanting to end her life; just that it's a decision that she has put off for now.

"If Nov. 2 comes along and I've passed, I hope my family is so proud of me and the choices I've made," she says.

Last week, Maynard was able to fulfill one of the wishes on her "bucket list," by visiting the Grand Canyon. But after the visit, she experienced a seizure that left her speech paralyzed for a time.

Maynard says what she fears most is that she might wait too long, trying to seize the most she can out of every day she has left, and she will suffer a setback that results in her losing her autonomy.

Earlier this year, Maynard and her husband Dan left California and moved to Oregon, because the state allows terminally ill patients to end their lives with lethal medications prescribed by a doctor.

More than 750 people in Oregon used the law to die as of Dec. 31, 2013.

With files from The Associated Press