Overthinking???!!!

Hi everyone, I just went out on my second date with a guy I met at a small get together with friends. We had a double date and it was so fun and never any dull moments. We had a small talk before I left and we kissed goodnight. He even texted me to make sure I for home okay. But we usually get on the phone every night, but for some reason, after this date he didn’t call me to go to sleep on the phone. I called him and it just kept ringing so I hung up. Am I just overthinking and he’s probably just sleep or do you think somethings wrong?