Alignment??

I noticed that after I put my 17" wheels on that my car tends to pull to the right on a straight stretch.

1. Is it because of the bigger wheels and lack of getting my car aligned afterwards?

2. Is it because maybe the lug nuts are tighter on that side? (probably not)

I have also had my card jacked up on the right side for a couple of hours putting my CAI on. This is driving the car after it has had time to settle.

3. Could that be the cause?

Thanks! Alot of questions!