Finally hit the infamous sleep regression

Started 3 days ago, my LO started waking up every three hours for feeding. Since 2mo he slept great through the night no problem. I’d wake him at 6am for his first morning feed when my husband left for work and put him down to bed at 9 after his last feeding. Now he’s waking through the night.

I’m guessing there’s no fix to this huh? Get him back to his regular sleep cycle?