Can Anyone predict my yield? Short indica long sativa leaves

This mother plant is about 4-5 months old and about 3weeks into flowering
Reason I don't know exactly is becus
it was with sum one else before I took it where I have it now
It's about 2 ft & a half
Was in the sun for all vegetation and 1 week of flower
Now under 4200 lumen 2700k cfl 68watt and gets about 5-6 hours of sunlight in the 75-90 degree weather it is berly flowering extremly long white pistils(gets super cold at night 50-60 degress)
Few trichomes , and is now showing some purple tiny leaves where it's budding, thinking its some Durban poison or maui waui , has like 17 (or more) individual budding places on the plant
Can u predict my yield?
(unknown seed)
Wish I could upload pics but I'm on my phone

There are SO many factors involved in growing that effect your yield.. Literally EVERYTHING from food, to light to Co2 and humidity... Sounds to me like they have not had the most optimum conditions, so you shouldnt be expecting much as far as quality or quantity go.. But if your plant is 2.5ft tall in the first week of bud.. it will proabably reach at least 4-5 ft at maturity.. and even if grown poorly.. should yield at least 2-4 ounces. Being that this is only the first week of flower.. you still have LOTS of oppertunity to get some good food and good lights running on that plant.. the more you do for it.. the more you will get in the end! Just remember.. if you go cheap.. you GROW cheap! I have a friend with 3 out door plants that were roughly the same hieght at the start of flower.. he is expecting to take down at least a pound per plant... its all in how you grow it man!

interested to know what you do get i have a plant thats almost 4 foot thats been changed to 12/12 today.

ive had mine from seed though so i know how its been looked after