Think my mum suspects I'm trans?

I am not 100% sure myself if im trans but sometimes I really wish I were born a girl. About a month ago I brought myself some feminine clothes to try out (I've only worn when home alone)

Over the last 2 weeks my mum has been making comments that make me feel she suspects that I may be trans. Subtle comments like "I always wished that I had 2 daughters" and another comment where she asked jokingly "would you want to try on a dress" while she was sorting out washing.

Im just confused as to how she knows as I don't think I've showed any signs.

Posted on a throwaway as family follows my main reddit account