Newborn not eating much

Ra

Our baby will be five days old this evening. She does not eat every 2-3 hours. Sometimes she will go 6 or even 7 hours before she will eat again. We change her diaper and take her clothes off for every feeding in order to wake her up. She will push off and refuse.

When she does eat, it will be for about 15 minutes on average. She has been having about 4 wet diapers and 1 or 2 dirties a day the past couple days. Should I be concerned about her not eating as frequently? Suggestions?