I just replaced my pump the first day it ran fine but now I can only get water at the pump and there is no pressure. Can someone help me out?

I just replaced my pump the first day it ran fine but now I can only get water at the pump and there is no pressure. Can someone help me out?

I realize this may be a foolish question, but sometimes there are two shutoffs.
One at the pump side on the house service line and another at the house. Are both valves open? Let me know, Tom

When you say there is no pressure, do you mean you are getting water at the pump but only a slow, low-pressure flow, or do you mean there is no pressure at the house?