My plant!!

I've been growing my plant for about 2 weeks now and nothing seems to be hapnin it's growing leaves but looks like it's just duplicating it's self over and over it looks a bit odd too? The leaves are more rounded but still have the little spikes. I'm growing it very naturally and I'm using just standard potting soil and a 100 wt energy saving bulb it seems to work quite good... I just can't tell the type of weed plant it is any body got any tips for me please
 
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