Starting problem? Need help Fast!!!

Wont start!! okay so what happened was about a month ago my brakes went out, i took it in and they said that i needed new rotors and brake pads, well at the time i did not have the money to do so, but after sitting for about a month i went out and started it up to make sure it started and didn't die on me i had no problems well a week has passed and i have gotten the parts i needed and went out to take my car to a friends house to change them out and i went to start the car up and it started up for about 2 seconds then died, now its just turning over and nothing happens, im kinda confused because i had no problems starting it up a week ago, the only thing i can think of is being the spark plugs or the fuel pump, my guess is on the fuel pump due to after turning it over a couple times there is no flooding smell coming out of the engine or exhaust i need any and all help possible, my main problem is i don't have the tools/experience to do the work and i just spent all my money on getting the parts i need.