Sure. Your system is telling you to slow down. You are barely getting to know women before you are getting them into bed. I suspect that you’ve either been raised with or have developed values of your own that tell you that once you get sexual with someone, there is more expectation of commitment in the relationship. If that’s the case, you end the relationship either because you know in your gut that this is not the woman for you or because you are violating your own principles.
Take the time to really become friends with a number of women and then make a more thoughtful choice about who you want to be with. Let sex evolve naturally out of caring and intimacy and I suspect that you will stay interested.
I wish you well.