Other car when parked slightly stunned and driven away 🙁

Hello everybody, I’m new here and I need some advice from you and/or would like to describe my situation. I’m 28 years, female and have been driving car for almost 10 years. I haven’t got a ticket yet, was never flashed before in any accidents… so I’m really a decent driver. I was parked earlier (was quite parked by the backman as I saw when I was getting in) easily to the fat BMW of my backman. ommen. Just very easy, I drove back really gently. I was in my panic, I am also pregnant and so far quite emotional, just looked if someone saw it (there were people running around, but no one looked at it somehow) and then just parked out and drove away. Of course I am clear that I should have stayed there, looked at “accident” and notified the police. Only it was really such a light stups that I assumed that nothing was happening. I then looked at home and found that there is absolutely nothing on my car, no paint marks, nothing. I have a “older” scratch on the pole, but otherwise there is really nothing on it. I also assume that there is nothing on the other, probably license plate on the license plate. I am now totally unsure and panic that the police are standing here right now and I get an ad for a driver’s escape. But if no visible damage has occurred, m How is the situation when you say that you didn’t get anything? Since I didn’t get out, you could of course actually assume that or would have had to look like that on witnesses. I feel like a serious criminal! I am a fundamental human being and would always pay if I really caused damage for it, but it was really only so easy that I had in my head, there won’t be anything. Can you guess what or Tell me what the consequences are if someone really saw it and called the police?