It's happened to me a few times. Especially in knitting. I will be working on it and at some point realize I dont' like how it is turning out or have lost interest in even finishing it. If it is a good yarn I will rewind it to use for another project at some other time. If the yarn is inexpensive and easy to come by I have been known to take it off the needles and throw it out!!' It was freeing to begin anew.
If you don't really like it than "put it away" and then you can rethink your fabric choices and start over. Follow your heart and do what you want to do.
