Can i login without Facebook details?

Hello
I have registered with my facebook profile and now i log in with my facebook profile. but nobody in my house does not use digital points forum. That's why i never logged out my digital points. but when someone sit to use facebook they found my facebook is open. So my privacy is at a stake , so can i log in without facebook in digital points as i registered with my facebook profile.
Thanks

See original post by Amarkolom