Prepare for Triathlon?

MermaidFaith

I am currently in a challenge, and one of our "tasks" is to sign up for a race of some sort. i went to www.runningintheusa.com and the site is really great, they have everything from a fun walk to a marathon listed.
Well, there is nothing in my area except for a triathlon on june 2nd. this will be a 500 yard swim, 14.4 mile bike, and 3.3 mile run. I have been working out since october, and have been either rollerblading or jogging an 11 minute mile for about two months.The longest i have ran is 5.2 miles.

I'm just wondering some peoples opinion on if this is an incredibly un-realistic amount of time to prepare for this triathlon. Should i just wait 5 months until the next event in my area, or should i try it.