3 month old not wetting diaper at night?!

Libby • Stop existing. Start living.
Anyone else deal with this? My little guy is starting to sleep 7-9 hour stretches at once at night. When he wakes up, his diaper is dry. Within 10 minutes of nursing (he's ebf) he pees a lot. He's still having plenty of wet diapers during the day. Should I call my ped?