more likely just ugle first leaves.
i notice the watering around plant is very small. Water a larger diameter. I cannot see how large pot is. As of now, if a tiny plant and big pot, keep watering a diameter around the plant, but make sure it saturates all the way to bottom. don't water again until top is nearing dry. As soon as you can, you want to water entirity of pot. Dry pockets can lead to improperly balanced nutrient in soil.. which could cause major problems in plant.
As long as it isn't a seedling ina 5 or 7 gallon... should be okay. By 2 weeks, a roughly 1-gal can be saturated without drowning it. Size of plant is better correlation than weeks of growth. Water much larger than canopy width.
If new growth is healthy, i wouldn't worry about first set of serrated leaves or first set of 3-bladed leaves. The seed has powered it up until now.