As long as the poops are soft, try not to worry. It's pretty hard to poop if you've not had a lot of practice. You have to tense your abdomen and loosen your bum hole, both at the same time. It's tricky. Plus it's a new sensation, so all the grunting and grimacing, crying and straining, is all normal as long as the consistency of the poop is good. Obviously if it is hard, or mucousy, then you need to talk to the Dr.
My HV used to advise a tiny sip of freshsqueezed orange juice, or a few grains of brown sugar dissolved in warm water, to get things moving... I must say though I could never quite bring myself to do it, and 'things' always resolved themselves in the end. A warm bath often helps too, perhaps some (clockwise) tummy massage before hand, too.
With Audrey we used to call this 'the yellow bath'.
