it's young and it is an autoflower... let the soil do it's thing. Allow top 1" of soil to dry (1/2" in a small pot), and re-hydrate only at this point. Soil will have nutrients in it. Seeds are packed with ~14 days of energy. I see you have not fertilized, which is good. Young plants just look weird soemtimes. If you see the next leaves burn or show symptoms etc, could just be the soil is a bit hot, but it'll be robust enough in a short period of time.