pot or not?

ok, so i am a new grower and started a few KB plants in my backyard. One day i noticed what appeared to be a pot plant approx. 6-7 inches growing on the path to my growsite. There are 7 serrated leaflets and the the stem and parts of the leaves are purple-ish in color. I'll try to put up some pictures of it, but if anyone could tell me just from the description that would be great

 

heres a picture of it

 

looks pretty.

 

not really sure what that is. It seems quite small to have 7 blades already.

 

I don't think so, and the bugs have got er' pretty bad already.

 

alright, i talked to my brother and it may be a hog plant from when i was picking out seeds. Hopefully it is, because that would be a miracle