Stunted grow

Hi guys, i planted this one on 23th march and it took 7 weeks approx. to flower. Actually i forced to flower in 7th week and change the light cycle to 12/12 for a week. (because i taught it wasnt an autoflower) then it started to flower but i don't know if the light change has effected or not. So the problem is i think she stunted because the top of the colas not looking good, there should i have ben much more pistils i guess and there are also so little pistils around the plant. So what am i gonna do right now?? , i need your precious help. (bought it as an auto but still not sure if its a photo or an auto one.)