Not peeing when sleeping

Is two months early to not be peeing while sleeping? It freaks me out her diapers are dry for awhile at a time. Bedtime she sleeps a 4-6 hour stretch, one feed in the middle of the night followed by another stretch that varies depending on how long she slept the first round.

In a 24h period she gets plenty of pee diapers, just at night while sleeping there never is anything.