Hey, buddy! 👋😇
Your plant is doing fine, its growth is normal considering its vegetative stage ended at 10 centimeters. In the first 3 weeks of flowering, the plant will grow and increase in height by +140% from the size it entered the flowering stage. If it was 10 centimeters, then we calculate 10+140%= 24 centimeters - that will be its maximum height at the 4th week of flowering, and it will stop growing, focusing on developing flowers and ripening! 😇👌
It's developing normally, so there's no need to worry about its initial size. It's strange that it started to flower at 18/6, which you set at the beginning of its growth. Usually, autoflowering plants transition to the flowering phase on their own, while feminized ones require a change in lighting to 12/12 to transition. But manufacturers can make mistakes, and no one is immune to buying an autoflower and getting a feminized one or vice versa! 😇👆
Good luck, bro! 😇👍