it's hard to tell the size of the plant or pot from your photos, but the plant isn't very grown so it won't be drinking much water... most is going to be from evaporation. Keep it warm and direct sunlight would really help.
Uploaded some photos so you can see the real size... really small right? also, it had like 2 inches but I covered it with soil because the stem was way too long. Probably because of light deprivation. Check it out... also some pic of my "prensado" as we call in brazil or brick weed or bagseed (obviously lower quality than U.S ones) Seems good for first day sprouted? also is my camera good or should I get a macro?
what about the size of cream? and not sure if that one is her or him haha if it grows fine we will know.
good vibes... call it a her. power of positive thinking! size of cream is what I thought... that's maybe a 1-2 gallon pot? Should be able to dry it in 3 days with good light, just leave that one alone for a while