When should you label a relationship?

Tija
It seems like it's pretty common these days to label a relationship after sex. You go into these murky waters where you're trying to figure out what you want to define the relationship as. But I'm incapable of casual sex. It's never casual for me and I get attached. I have yet to meet anyone in the dating pool who wants to wait more than a month for sex. People treat sex just as lightly as they treat kissing. Feeling stuck. Thoughts?