Hi ajs61295
Might need a bit more info on whats going on your end.
The plant looks like its in flower, how many weeks?
What u feeding it?..how much?...how often?..and lastly what is the ph of the water you give her?
It looks a little under nutrient, but cant be sure without other info..it could be lockout..
By the looks of things you are not far off around the 3 rd week of flowering give or take few days.
How ever it is not uncommon to experience yellowing of the leafs at such an early stage of flowering & this would largely be strain dependent.
One must also look at nutrient def which may occur in the early stages of flowering to which it appears you may well be suffering with a touch of P - phosphorus def this may be related to your own feeding nutrients over/under or strain related at the end of the day.