Should I harvest??

Hi! This is my first year of attempting to grow. I originally planted only 5 seeds (I have NO IDEA what kind or strain) just for giggles... and ended up with 3 beautiful females that I have been growing outdoors. My buds are a little bit older than 6 weeks, and the tips of the pistols are starting to shrivel, but only the very top of the buds have changed to purple, the rest of the bud is still white but with the shriveling tips. Should I harvest? Thanks a million!

No give it some time, more 8-9 weeks for most of mine 6 weeks is to early, they will fatten up in the next couple of weeks

wait at least 2 more weeks.