Buds are bigger

Nov 29, 2016
It is already the forth week of flowering, and the buds are growing bigger and bigger... I was thinking about the lower branches, they also have some colas, but there is not enough place and light for them, so I really do not know what to do with them. Cut them off? Leave them?
Flowering, 4 weeks
White Widow (hybrid) from Errors seeds
Big Bang (hybrid)