Silkies are notoriously difficult to sex, especially at a young age. In my experience, their crest, once they feather in might be considered a good indicator of sex, and either an egg or crow is obviously the best indicator. Some of them are easier to determine fairly early on, but most aren't. Your little sweetheart has a vaulted skull, which is common in silkies. It will help give that rounded crest an even more full look. Once the head is feathered in, along with hackle feathers is one factor that is something to consider when determining sex. In my 3 hatchery silkies, I could tell that I had a blue cockerel early on. The two white Silkies looked nearly identical, but slowly they started to look different. I had one white pullet and one white cockerel. My breeder Silkie was confusing me until 7 months old, when I finally posted here and a week later she laid her first egg. I have seen some really nice looking Silkies coming from hatcheries recently. So, I think your Silkie is going to be gorgeous! Does it have 5 toes? We have some folks here that are very experienced with Silkies. Hopefully they'll chime in. Here's hoping your little one is a pullet
Congrats on that cutie!
