Yes, it's normal to have to change your pads now.

Easy thing to do!

Tools you'll need:
- Jack & stands (to be safe)
- Wheel lug wrench (or 19mm socket w/ breaker bar)
- 12mm and 14mm wrench or sockets w/ rachet
- Caliper piston press (a.k.a C clamp)

Parts you'll need:
- New brake pads (4 for the front)
- OPTIONAL: some anti-squeak stuff for the back of the pads

Process

1) Make sure the car is cold cause those brake pads get HOT!
2) Loosen the lug nuts on your wheels (front)
3) Jack up the front of the car
4) Remove the wheel of the side you're working on
5) Remove the 12mm (might be 14mm) bolt at the bottom of your caliper (thing that sits on your rotor)
6) Swing the caliper up toward the top of the car (swings from the bottom up)
7) Remove the inner and outer pad from the caliper and gently set the caliper back down onto the rotor (IMPORTANT: REMEMBER WHICH PAD GOES WHERE SO THAT YOU PUT THE RIGHT ONE BACK INTO THE RIGHT PLACE)
8) Use the caliper piston press to press the piston back into the caliper, this way you can get the new pads on and the caliper will swing back down over the rotor. If you don't do this, the pads will not allow the rotor to fit between them.
9) Replace the pads and remember to put the metal plates back onto the back of the pads.
10) Swing the caliper back into place
11) Replace and tighten the bolt you removed in step # 5

That's it! Now, do the other side just the same.