I feel so horrible

Hello first time mom and I’m freaking out. My son is two weeks old and as I was getting ready to feed him by propping up the boppy moving things out of the way, I grabbed my phone to set it on the coffee table. It slipped out of my hand and it hit the side of his head. He whined very little then as I cried myself and rocked him telling him how sorry I was and I love him he was fine. I checked his head and there’s no redness or swollen bump but I’m just so worried and I feel so bad about it I don’t want to let him out of my sight. What should I look for? Should I go to the hospital? Idk if he’s okay or if it hurt idk if he’s fine or not I’m just worried and scared.😖😖