well, sleeping through the night was great while it lasted 😔

My 10 1/2 week olds been sleeping a 6-8 hrs stretch (then back down for about 2-3hrs) a night since he was about 7 weeks. For the last 4 nights, we're back to waking every 2 hours, sometimes less. I know I'm lucky to have gotten those weeks of sleep, but I thought I wouldn't have to deal with this til the 4 month sleep regression. Anyone else dealing with this situation? I'm trying to stay hopeful that it's a growth spurt my apps aren't telling me about 😩