early pull?

ive got sog pulling 1 plant every 2 weeks, its a new setup with lil room the first plants are at 6 weeks and i have to put another one in. i put 2 from seed to start me off thinking id probably get a male but i got 2 gurls... so the box is full and im puting another one in on monday reckon i just squeeze them in or just pull one of them 2 weeks early? or will it greatly reduce yield?

pulling it early will reduce yield, potency,and flavor.

Some strains finist in as little as 5 weeks. But, Smoke and Coke is right. Your weight and wuaity will be down.
What about just harvesting the most mature buds . That wil allow more "Light" room.