It all depends on what they mean by change. And also your age starting out. If you are pre pubescent, hormones will make you go into puberty as a female.
Since most of us are older, the effects are not as drastic. But as others have said, your skin softens, your fat redistributes. You'll grow breasts. You will lose some body hair.
What it won't do it change your bone structure, make your voice higher, etc.
Like Wild Flower said, it's 40% of the battle, unless you stared very young.
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