Strictly speaking, it would make you a guy who crossdresses as a girl. You wouldn't magically feel like a woman by wearing women's clothes.
That said though, we generally don't call women wearing men's clothes crossdressers anymore because it's socially acceptable for a woman to do that. So on that line of thought, why should we think of a man wearing women's clothes as a crossdresser? My grandpa and I had this debate - one of my brother's friends is gay, pretty masculine bodywise (big muscles, hairy) but he likes to wear women's perfumes and dresses in clothes from the women's department a lot of the time. But he definitely isn't presenting female, because he has short hair, beard, the muscles, and it's not skirts/dresses, just women's jeans and tops. My grandpa said he was a crossdresser because he was a man wearing women's clothes. But I can't see how he possibly fits that definition while his presentation is overtly, obviously male.