Today I am wearing my favorite jeans and a pink thrifted Gap long-sleeve tee. Even though I'm not wearing a skirt, I still feel feminine. I think it is most important to dress modestly. You don't have to wear just skirts and/or dresses to be modest. Many girls and women wear pants, and are still modest.
BTW, sorry for the odd expression on my face, and the poof of hair on the left. :-)