Talking stage advice after (21F) suddenly becoming distant with me (28M)

So coming off 6+ months of being single, I (28M) recently hit it off with this local (21F) woman I met on a dating app. We have only been talking for two weeks, but did meet up 4 or 5 times during that period.

Yesterday, we spent the entire day and night together. We drove around and she introduced me to most of her family, went to a fair together, and I slept over at her place. It seemed like she enjoyed it, and we made plans to hang out again tonight. Once I left her place however, she started coming off kind of distant in her texts and when I asked her if our plans were still on for tonight she just said probably not. I said that’s fine and she left me on read after that.

I am probably overthinking this, but what is the best approach here? Just directly ask her if everything is okay? From previous relationships, I get the feeling she is pushing me away, but it could just be that she’s not in a great mood or something today. Any advice appreciated!