Are you sure your silkie isn't a bearded silkie? I know that with Amerucanas and other bearded breeds either they have very little wattles or, more commonly, no wattles at all. This is the same with both males and females. If your silkie is bearded, it will be very hard to tell male or female because he/she may never get wattles. She/he is very cute regardless if it is a boy or a girl
Hens go broody when you don’t want them to… and won’t go broody when you do.
