I Have a leopard gecko for 2 days now,yestarday I fed him 4 crickets and he hasnt pooped yet,is he impacted or? http://www.reptileforums.net/forums/attachment.php?attachmentid=11501&d=1388167676
Make sure all your temps are correct, like zilla said a pic of your setup would help. It may just be settling into its new enclosure if you only had it 2 days. Could be dehydrated as well.