how did you arrive at this conclusion? .there are a lot of clear hints that she is Luke's daughter.
It was based on a gut feeling after just seeing the movie based on a few things I noticed.
They look like they are similar in age, Luke never really had a love interest and Jedi's aren't suppose to procreate.
Luke and Leia are twins, so the odds of her having twins is increased. If it was twins, Leia could have decided not to share the info with any one including Han.
Given Luke's personality I find it hard to believe he would drop his kid off on Jakku.
Rey just happens to be waiting on the one planet in the galaxy where the Millennium Falcon is? Seems like a bizarre coincidence to me.
The only thing I caught that might suggest she is Luke's daughter is his light saber was calling out to her.
Also the whole round Death Star thing isnt rally working, they may want to try a triangle, square or some other shape next time.
Lastly, regardless of who her father is, she is one fine looking woman.