I'd speak to the pediatrician just for your husband's piece of mind. I very much doubt if anything is wrong, but that isn't my point. Your husband's concerns as a new parent, however he has come by them, are equally as valid as your own. You can bet there will be plenty of times in future when you worry unnecessarily about your child, and I'm sure you'd like your husband to speak to your concerns. I know MILs can be hard work for a new Mom, but you are very lucky to have an involved Dad. If you block out his concerns now, he may give up eventually and not notice things when you need him too later. I really don't think a good pediatrician would have any problem discussing this.
