Will Plan B still work... waited to take it.

I was nervous to buy it the first night, so I went the next day after school and got it and took it. This was about 1 day and 3 hrs after it happened. We had morning sex without a condom( I'm dumb asf, he didn't have any and I was just dumb..., now we have some) now I'm nervous. I've taken Plan b before but I'm just scared. We did the pull out method.