Welp, the runt is starting to flower.. I see PISTI...

Pretty standard height to me for an auto before the stretch. Autos begin to flower somewhere after deploying the 5th or 6th node (usually after the 5th); a 2 ft plant with 5 nodes is not better than a 6 inches plant with 5 node, actually it's worse, since all that height is useless and makes really hard to have an even canopy. (my last run I had 2 autos of that same size pre stretch, check them if you want). Not related to your question, but half a gallon of water a day is asking for trouble; the plant is been over watered at the very least and you could attract fungus gnats at worst. For that size, use 50% or even 25% that amount every 5 days.

Hello ! I would not panic now , the 1st pistils are here but the plant is still not into flowering stage, she's just showing her sex. I think that she will now stretch untill her "real" flowering ! But yes she will remain short because of the very start , she had a slight over watering and those first weird leaves , sorry dude. Hope it will help you 👍👊