Transplant day!!
After letting these little guys get a bit sturdier, I transplanted them out of the house plant pot and into their own 4 inch pots. They are now in the sunniest window in the house.
Despite being the sunniest window, it also has snow piled about a third of the way up it. A good amount of light still gets in and very brightly reflects off the snow.
I 'm still not sure what these are, beginning to think tomato due to the leaf pattern. However, I can't smell anything yet and I know what a tomato plant smells like. Perhaps when they are hardier I can break off a leaf for closer inspection.
More to come as they grow!