Why am I depressed after a one night stand?

Recently I had my first one night stand. It happened with a guy at a club and it happened very fast without us getting to know each other too much first. The problem is, the next day I felt extremely sad and depressed. I felt like I've been used and felt cheap. I was also sad that he didn't ask me for my phone number even though I wasn't interested in him. I felt unattractive and worthless. Is it normal to feel this way? Do guys ever feel this way too? How can I get over this post-one-night-stand depression?


Can I preserve my fertility?

I've heard so many horror stories of women who wait until their mid-thirties or later to have children, then find out that they are infertile. I'm 25 years old now and nowhere near getting married or having babies, yet I don't want this to happen to me when I'm ready. What can I do now to protect my fertility and make sure I am able to conceive when the time is right? It's causing me a lot of anxiety!!