Next steps

Going to give a quick recap of my current situation
-About three weeks ago, I went on a terrific first date. I texted to thank him and he immediately asked if I was available for another date at the end of the week.
-went on a great second date. Over the weekend, o had asked if he wanted to get together the next week and he suggested a day early in the week.
-went on an even better third date and at the end, he mentioned that he was free later in the week and to
Check my schedule.
-scheduled a fourth date but due to an unplanned work project, he asked to reschedule but with no specific date. He did know I was going out of town in a couple of days though.
-while out of town, we exchanged texts a few times a
day.
-so now I’m back home, do I wait for him to initiate or do I ask him to do something next week? We vaguely talked about ideas for plans during the week but not definitively. I’m trying to figure out if he’s still interested. In my gut I think he is, but as an overthinker, I can always come up reasons why he is not interested anymore.