Not really. OG Kush is about a 50/50 hybrid but it leans towards the sativa side. This means your flowering phase can go anywhere from 9-14 weeks. Looks like you may have harvested at week 8 of flower? If that's the case, you probably harvested right before they really swelled up. If you have any still growing, keep them going for another 3 weeks minimum, I'd say, but checking the trichomes is the only way to know for sure. Looks delicious though!