It should be alright. I dont think its considered a missed pill until after 12 hours although I am not sure. You can talk to the pharmacist or the person who perscribed the pills and check to make sure. But I dont think just 1-2 hours will make a difference.

With most pills you have around 12hours from "forgetting" it before you need to use another method (although with some POP's this is only 3 hours). One hour either way wont effect it.