Should I reach out or just wait for him?

I’ve been causally seeing this guy for the less month, last Saturday we got into an argument when we went out together but we made up and resolved it before bed and next morning. It seems fine but I feel like it was left on a sour note … I apologized again Sunday evening and he said probably from our drinking didn’t make decisions to argue the little stuff and said don’t worry about it.
I haven’t heard from him since. I know he is usually busy early weekdays with work but I usually hear from him mid week but I haven’t still.
I’m not sure what to do.. to give him the space to reach out to me or do I check in and see how his week is?
I’m conflicted.
Should I reach out or just wait for him?
Post Opinion