Milk dried up! Please help!

Sunny

Ok so my baby who will be 7 weeks tomorrow struggled latching on when he was born. I do realize I probably didn't try as hard as I should have but as a ftm I was new to all of this. Well milk dried up and I have been trying to pump for a few days now but don't get much other than a few drops. Please help and give me hope because baby has finally been latching on but gets frustrated because no milk comes out.