Claire,
From your profile, I read that you are 25 years old. You are right on the border between adolescent and fully developed man. If you were any younger you would go straight into female mode.
I am a late transitioner and I needed FFS in order to pass. Also, it helped immensely to lose weight. Even with those two things done, I needed about 3 years of HRT in order to pass.
At 2.5 months, you are just beginning. Take a picture now and next year and you will see some difference. To see a real difference, take another picture 2 or 3 years from now. HRT is slow to feminize, but it does happen, eventually.