I can see people avoided this one!
here is a link/one of many
http://www.parents.com/toddlers/developmen...IBQPSBHQ?page=3
Also, just my opinion but weaning a child from the pacifier at 7 months old is a little premature. The reasoning I have behind it is if you have "sleep trained" her to use it and to help her self soothe, she isn't going to understand why all of the sudden you are taking it from her. When she is a little older, she can slowly be weaned from it by taking it away for only sleep and then weaning from there. She is still an infant and infants definitely like soothing objects or mama. Obviously, you are the mama and can do what you feel is right. You are going to have to be consistent and follow through in order for her weaning to be successful.
good luck