give her time, sh is still just starting the flower cycle, those buds will fatten slowy up and by the time your in the 6th week you will see a big differance from now til then, and by harvest time around 10 weeks of flower you will have some real nice buds on her, all is normal and yes if you want you could give her something just for the buds, i use beastie bloomz by fox farm, it is a booster and works real nice, remember less is more