Need help finding a manga

This is most likely a manhwa and it was about this woman who had a one-night stand to forget about her childhood crush who was currently dating her best friend. Since she was drunk or something, she wasn't able to remember his face, but he had a good bod lmaoo. Anyway, she got pregnant and saw an obgyn?? And also met her student there too?? I think she thought that her student got pregnant and was worried for her. Oh yeah, she is a teacher I think. Ugh I rly need to get into the habit of bookmarking because the hunt is so tiring ╥﹏╥