is this plant a autoflower? first grow

first ever grow from a bag seed. been growing for about 5 weeks now on a 18/6 cycle any idea if this plant is autoflower or not? also why does the top fan leaf only have four blades while the opposing one has five?

number of fan leaves, blades, has nothing to do with a plant being either photoperiod or autoflowering.. secondly, all cannabis plants will start to throw more blades as they get older.. if you notice, they start out with a simple two, and can go any where up from there..i've personally seen 13 on a few plants, and again, it means absolutely nada.