Hello and Welcome To BYC! Different breeds lay different numbers of eggs, skipping a day or two isn't unusual for most breeds. X3, I wouldn't eat an egg with a hole in it... you can cook up the egg and feed it back to the chickens as a treat.
Welcome to BYC. Glad you decided to join our flock. The other members have answered you question very well so I'll just say, please feel free to ask any questions you may have. We are here to help in any way we can. What kind of chickens do you have?