Thank you everyone so I don't know if any of my 19 wk old are Roosters we thought so orginally but now not so sure and the one Rooster we are sure of is a Juv bird so we will just leave it as it and see what happens. I really want eggs as my main reason but I also want enough fertile eggs that when I have a hen go broody that she can raise a cluth.
Take a look at their combs. By 19 weeks the rooster's combs will be bigger and redder than the pullets. If in doubt posting pictures often helps in sexing young birds.