I took the plan B pill, but took the second pill an hour late!

Patient: Hi,I had protected sex with my boyfriend, but the condom broke. I was regularly taking birth control, but we were still worried so we got the Plan B pill the next morning. I ended up falling asleep so I took the second pill an hour or two late. I was supposed to get my period yesterday, so now I’m a day late. What should I do? Is this normal to get my period late after taking Plan B?