What strain is that ? she looks to have some sativa genetics leaves , so you will have a longer period for harvest , i actually dont agree with some that was already said, but we all have diferent opinions , Your buds will already have a tasty harsh smell i think , your leaves are to dark green and buds too leafy , you gave her too much N during flowering (common mistake for a beginner , dont worry) , but anyway ,if you used salt based nutes yes when you fell she ready do a very good flush , and let her stay for 1 more week with just water (it's not like she will feed on THC or buds get smaller , she will only feed on acumulated nutrients)
If you enjoy for a good smoke , you should let her starv , she is not a pregnat women like the other user said , unless you want to smoke the baby after hes born , i think its a completly diferent thing . but anyway.
Buds saturated with salt based nutes in harvest , will take FOREVER to dry , and fucking long to cure, and will have a harsh smoke no matter what you do .. especially N satured .. thats the worst .