I 18M had a one night stand with a 36F and never told anyone

So I went to a bar the other night with my dad. They let 18 year olds in but I only went because my dad wanted a ride there (can’t drive). Anyways, I’m chilling, eating some good food, and I catch the eye of this woman. She’s decently attractive, looks like she’s in her mid 20’s and we end up talking and playing pool together, having a great time the whole night together. When the bar closes, I take my dad home and we decide to meet up at her house. I know her age, she knows mine, and we end up just having a good time listening to music. It escalates and we end up having sex, with both of us having a great time, although she had initial hesitation because of the age gap but it ended up being a good experience for me and her. I wore a condom, she’s on birth control, and neither of us have any diseases or concerns of any sort. There was no expectation for there to be anything more to it than just a simple one night stand. I feel like I should regret it but the other part of me feels like I shouldn’t. I got really in the mood and she was there to help with it and it was legal 🤷🏽.