It could be that because you started flowering so early and so small it is having some sort of negative impact on bud production. I've never grown ww before so I can't call myself an expert with that particular strain but I have been growing for over 7 years and at 5 weeks my plants have pretty big well defined buds on them, irregardless of the strain. The reason I say a light leak is because it seems that its just not flowering correctly, and light leaks will do that.