I could use a little advice?

I met this girl about a month ago and we exchanged numbers. At first I was just looking for a friendship and wasn't all that attracted to her. After hanging out with her and getting to know her better I have developed feelings for her. We text every other day and hang out usually twice a week. I think she may feel the same, but have no idea because I am getting mixed signals from her or I am horrible at reading them. I don't want to make her feel uncomfortable so I am nervous about making a move. What should I do?