Medawinks- You probably won't notice much comb on your silkies because they typically have a dark mulberry walnut comb that doesn't really seem to grow until they are close to maturity. Seems like silkies really bloom at around 9 months to a year. And it can be hard to sex them until they crow or lay an egg! I look for topknot shape and attitude. My boys seem to get really forward and pushy early on and a boys crest or topknot looks more like a swept back shape with streamers that come out over the neck a bit where my girls get a muffin hat shape to their topknot. Even that doesn't always work. Sounds like you are having a great time with your babies!!!