9m/o night waking

My sons been waking up in the middle of the night for the past month and the only change is I got a job and he’s going to daycare. He doesn’t take good naps throughout the day regardless of what I do either. I’ve tried an earlier bedtime, a later bedtime (to wear him out), bath before bed, and just about anything else that people would suggest as a first line solution. I don’t know what to do at this point. He wasn’t doing this before.