I'm going to be completely honest here. No, you do not have a chance.
A 2.49 science GPA, a 16 MCAT. Aither of these would be enough to kill your application by itself, but put the two together and it's more than a death sentence. And if you're still working on your AMCAS, you are rather late to the game. Applying early makes a big difference in the application process, and applying this late in season is strike three. (Although your other two strikes were so bad, this is really more like strike ten.)
You need to retake the MCAT and get 30+. You need to enroll in a postbac program and get a 3.7+ science GPA in that program. You need to apply again next year and submit your primary application no later than June 20th and your secondary applications no later than August 15th. It's a lot to ask for, but it is the only way that you will be able to get into medical school.
PS: The number of people that get into medical school each year with MCAT scores of 16 or lower is less than ten. And this is out of some forty thousand matriculants per year.