First time mom!!

My daughter was born 4 days ago and I'm breastfeeding. I'm pumping when she's done on the breast and storing it. She hasn't pooped at all today and she's only had two wet diapers. I'm just wondering if I need to be concerned that she hasn't pooped!? Does she need to be having more wet diapers as well!? I'm freaking out! All I want to do is cry. This breastfeeding thing is so hard. I'm trying to keep her on a strict two hour schedule with feedings. It's not always staying two hours though. Once my alarm goes off and i put her to my breast, she doesn't always want it. How long should I wait during the day to feed her? No more than 3 hours?? Someone help me!!!