His dad caught us😕😭

We're in high school and we're both older than 17 so it's okay people. But anyway we were ya know getting busy and his dad walks in the room and now I'm scared to be around his dad. It's embarrassing and really awkward. I don't think I can go over to his house anymore just because I don't want his dad to look at me and know I have sex with his son. Is that weird? Am I overreacting?