Baby won’t sleep anymore??

My 2 month old usually takes 1-2 hour naps during the day and only wakes up once, sometimes twice, at night. But the last few days, he won’t take naps longer than 30 minutes and it takes me forever to get him asleep. At night he’s waking up every 1.5-2 hours suddenly. This is so weird for him considering we’ve had a pretty good schedule going for the last month. Any advice? How do I get him to sleep longer during naps?? Im going crazy because I can’t get anything done and I can’t get a nap in for myself