Yup... my DD liked to hold it in too. It's no fun if it lasts for too long as she'd get a bit miserable about it if it had been 4 or 5 days but mu MCHN said that some BF babies can poo as infrequently as once a week. She said it might actually be a good sign that she was 'using' most of the milk consumed and that very little was being made into 'waste'. Not sure about the latter theory but hey, we take the positives where we can get 'em eh??!! Good luck with the poo-splosions!!