get those seedlings in their own pots, before its too late. the roots spread like CRAZY and are probably already tangled into one.
its not too late to seperate them but your time to do it cleanly and safely with as little shock as possible is running out! depending how long you plan to veg for you could transplant them into something bigger, but not the final pot, to let it heal from the shock of the transplant then later you can do a clean transplant into the final flowering pot. or just put it in the final pots and call it a day, but i think the plants grow faster when the roots are more confined (but not root bound). it seems, to me anyways, that my seedlings grow a little faster in red solo cups and reach vegetative stage sooner than if i start the seed in its final pot.
GL with your first grow. Dont get discouraged if they are male or you dont get the best harvest, it gets better EVERY time!