Not ttc but disappointed

About a month ago my period was over a week late, I seriously thought I was pregnant. I was not ttc at all, I was drunk and it was unprotected sex with my on off boyfriend. I know it’s dumb because it wouldn’t have been a great situation to bring a baby into, but I’m 23 and I know I could’ve managed. I was so so worried about it, but when my period started I burst into tears and felt like I lost something, even though I never had it in the first place. Has anyone else felt like this?