How to know when calyxes are swollen?

They are starting but they are not theybtake a few weeks. Basically swollen mean that they will be big enough to considere that a seed have firmed in it (tho it has not, like a fake pregnancy) swollen in that way. Ut happens when the hair have turn red/brown and curl they swell and expend.. after they all have swollen and hair have turned you are very closed to harvest.. if you look at the mainstemp of your plant where branch form you'll have preflower. Thise have usually swollen up by this time in harverst . Thats whats swollen mean. some strain have big flower some have smaller. But that size should be a general idee of what to look for