I recently bought some corn seeds so I could eventually make some pop corn, and have some corn on the cob. I planted them as per the instructions in the package, but they haven’t sprouted yet. The instructions say a max of 14 days germination, and today is the 14th day, and still no sign of a corn plant. Is it okay to dig them up to see if anything is happening? Or should I just wait a little while longer? Thanks in advance!