We are hand raising a feral kitten that at a rough guess would be around 3-4 weeks old. We got it on Sunday morning and so far it hasn't pooed. It has done plenty of wees, but no poos and I'm concerned that not pooing will do more harm than good. But then I have no idea if this is normal or not? It is bright and alert and cries when it's hungry so it doesn't seem affected by it, but I know nothing about cats so have no idea what to expect.