Newborn sleep patterns

Kennedy • Married to my soulmate since 7.4.2020!💍💞 We have a 4 year old son, who took a year and a half to conceive! We are expecting baby girl March 11th 2021 after 2 1/2 years of ttc with fertility treatments 💖
Is it normal for my newborn (he's a week old today) to sleep through the night now? He slept for 6 hours straight(of course I woke him up to feed/change only once) but he slept all night. I'm a ftm and I'm not sure everyone says they're supposed to be up every 1 1/2-2 hours. Should I be concerned ?