Holler. A few things to make sure - can you handle an extra four credits in your schedule? It's not a hard class compared to most pre-reqs, but it is eight hours of classroom time a week, plus at least an hour or two of study time. If you are able to attend all your classes (in my state, if you miss a single class, you have to make it up or you won't pass - making up more than one or two classes is almost impossible).
Will you be able to actually get a job?? It took me quite a while to actually land a job, but I took the class my sophomore year, so I'll have almost a year of experience before I even interview, and almost two years before (hopeful) matriculation.
If you do get a job, will it be with a company that does Grandma Shuttles? Taking people from the hospital to the nursing home is BORING. Fortunately, my employer doesn't do much of that - maybe once (twice at most) in a 24-hour shift. I run a lot of 911 calls, but those aren't what you see on TV. There are plenty of legitimate calls (broken bones, lots of car accidents, seizures, diabetic emergencies, assault/battery), and those are intense and fun, but you can bet the farm that you'll get calls for a paper cut.
Can you fit work into your schedule? I like 24-hour shifts, and I had Fridays off last semester, so I worked almost every week on Friday.
Last of all - it's a blast. I love it. If I never even get into med school, I won't regret being an EMT for a minute. The pay is pretty low, but the job is fun. I have hilarious stories and serious stories. Lights and siren? Yeah, it's awesome. I work in the inner city (absolute ghetto

) and we run red lights like it's going out of style.