"My doctor only got 40 (H1N1) flu shots. So I didn't know if I'd be able to get any at all," she said.

Her worries were compounded by the fact that she's 5 ½ months pregnant; therefore Lowe is considered to be at high risk of developing complications from the swine flu.

"I thought I'd have it (H1N1 vaccine) a little sooner. I got my regular flu shot a month and a half ago," she said.

Monday morning at DU, 150 students were the first on campus to receive the H1N1 vaccine in a flu shot clinic.

The university received the doses on Friday and sent out an e-mail alert to students.

"The vaccine came in later than we expected," Dr. Same Alexander, director of the Health and Counseling Center at the university, said. "We've ordered 12,000 doses. So 150 is a very small number compared to the number we plan on giving before the students leave for the holidays."

The remaining doses could trickle in by the hundreds or pile in by the thousands. Alexander says there's no solid prediction. But the hope is to get a vaccination to every student who wants one.

On Monday, the only students who could get vaccinated were those who fell in to the high-risk category. That category includes pregnant women, caregivers or parents of children who are younger than six months old and children under age 18 who have chronic conditions like asthma.

The state criteria also includes health care workers and children ages 6 months to 4 years.

Officials with the Colorado Department of Public Health and Environment estimate that people who do not fall into the high-risk categories can get their flu shots at public health clinics sometime in December. Any clinic organized by the health department will provide the H1N1 vaccine for free.

"It's been a little confusing," DU student Evan Leonard said of the search for a vaccine. "I was very happy seeing this with the university. My wife had a very hard time getting it herself."

But not everyone wanted to get the H1N1 vaccine. Students like Nancy Saunders were apprehensive about its safety.

"I wanted to wait until after some people I knew had gotten it and they had no ill effects. So I decided to go ahead and get it," Saunders said.

Colorado public health officials say, this week, H1N1 flu shot clinics should begin appearing across the state for high-risk patients. Garfield County will hold a free walk-in H1N1 flu vaccination clinic for high risk patients on Thursday from 10 a.m. to 7 p.m. at public health clinics in Rifle and Glenwood Springs.

Click here for updates on H1N1 vaccine shipments and clinics in Colorado, or call 1-877-462-2911.