Chat, how long should I wait?

So there's a girl I confessed to a few days ago, we're talking. She said she's not sure about how she feels and it's niether a yes nor a no for then. So I just said; "take your time" it's better 3-4 days. Even on the 2nd day somehow I said love you, goodnight and she went love you too (adding that whether it's romantical or just friendly she doesn't know) so now I am clueless on what to do with it.