Alignment issue

Hey sorry if this question has been asked before I bought a 2014 maverick XXC in December and I took it out for the first time yesterday. After using it for half the day I notice the steering wheel had to be turned to the left to stay straight, I checked the tire pressure and it’s about half a pound off would that be enough to make it pull? I want to take it to the dealer but of course they are booked up for a month and I am suppose to go out on Sunday, would it be okay if I ran it like that for the day or just cancel my plans? Sorry I’m pretty new to all this.