My 7-year-old walked in on us and now the school thinks I'm being abused

The most embarrassing thing happened today.

My kids dad and I were in the bedroom this am having adult time. The kids didn't have to get up for another hour for school so we were taking advantage of the time. He was going down on me when my 7 yr old walked in on us. He forgot to lock the door. She left out and we stopped. When I was taking the kids to school she asked me what we were doing and I told her I wasn't sure what to say but not to worry and everything was okay. About an hour later I get a phone call. It's the principal with Aviana in the office with him. She's upset and worried about me. He wants me to speak to her on the phone. So I'm talking to her and she's crying saying her daddy hurt me and she's worried about me. I'm reassuring her he did not hurt me and everything was okay. The principal gets back on the phone and says he's going to calm her down and talk to her for a while before sending her back to class. I get another call and a voicemail from someone at the school just checking in to see how I am doing. I also get this email. Yall I am sooo embarrassed. The school thinks i'm over here getting beat on and I was just getting cracked 😭😭😭😭😂😂😂😂 They prob called CPS