So I replaced my front brakes and rotors and while I was at it I decided to lubricate some of those suspension/control arm bushings with WD40 . Now when I drive in a straight line the wheel suddenly pulls to either side then it's fine after a moment. Would spraying oil to some of those front suspension/ steering arm bushings cause this to happen? I did make sure the front wheels where spinning freely while I had it on the jack and the only thing I noticed was a very slight dragging sound(as if the rotor was touching the caliper bracket) but it was very fainted.

Newuser, check your tie rod ends. To me it sounds like you have one this is loose and what you are experiencing is the wheels will be straight as you are driving, but when you turn the wheel, one wheel turns as the other remains straight, leading to the wheels fighting each other. Then once the one wheel catches up, it will drive straight. After that, not sure what it could be.

Thanks Thermo. Not sure how this tie rod will come loose right when I did the brakes w/out me touching it but I did spray wd40 on that bushing also. I'll take a look at it.

that is the Wheel Alignment issue, I had it before.

could also be a dragging caliper, did you lubricate your caliper guide pins with super-special-blue silicone grease?

I did lubricate all the pins (I'm assuming the "pins" are the hex bolts).

Before I did the brakes I noticed that only 1 of the 4 front brake pad was down to the metal (the one on the piston) and that is the side to which the car pulls. I wonder if the caliper is malfunctioning. Although I have put the car in neutral and let it roll at very low speed to see if it stops abruptly and it does not.