If you placed them straight in the soil then they might take a while or if you planted too deep,, the only thing now is to wait.
What I do..
Soak them for 12-24 hrs before or until there starting to open and then wrapped in a paper towel until the taproot comes out and then plant only 3 mm deep, only just covered is how I like it, just so it's nice and easy for it to push through.. I would say the best thing is to wait or if there really deep you might want to try find them very carefully and locate near the surface.. Best of luck mate.