hello my husband was changing my son s diaper he is 11 months old and he noticed a tiny bruise about the size of a pea on his lower chest and it has a tiny lump underneath it my doctors office is closed today and i don;t know if we should take him to the emergency room he is fine when i press on it laughing actually and he s not acting any different than usual just want to make sure it isnt serious i can t imagine where he got it from because it was t there yesterday and he woke up with it. The only thing is that he has been way more active and into things lately and I don t know if when he woke up maybe banged into his crib we have a bumper on it but he s been starting to figure out how to move it. I don t know if this is relevant but he was born * weeks early I bought him to the doctor three weeks ago and they said he has caught up pysically and developmentaly but I just wanted to throw that in there also they did a blood test for anemia and he doesn t have that but they could not get a urine sample from him. Thank you so much