Will my supply go down?

Rebecca • U.S Navy Sailor's wife. Married 12/30/15. First born on 01/02/17 Second Born 09/18/18 🧒🧒👨‍👩‍👦‍👦

My almost 3 week old slept almost 7 hours before I woke up and realized he hasn’t eaten.. my heart jumped into my throat because I wasn’t sure if he was still alive.. but I checked on him, and woke him up immediately to be fed.. he ate for 25-30 minutes and fell back to sleep. During the day he literally wants to be fed every 2 hours but at night he’s been waking me up every 4-5..

what I’m wondering is should I be worried about my milk supply? I’m afraid with him sleeping so long at night that my milk supply will go down 😕