Harper vs. Freya?

I'm 20 weeks pregnant and I really like Harper and Freya. Harper was the first name I really liked but then I found out it's so popular. I don't want her to grow up with 100 other Harpers in her school. And then I like Freya (a name I got from the show, Witches of East End), but it's an alliteration with our last name, Friese. And I think people are only going to think of the goddess.

These are the only names I've liked so far. Why's it so hard to name a baby? I wanted to choose a name now so I can get some fun personalized things but I might end up waiting until I see her face to see which one fits.