If you ever feel "working mother guilt," this post is for you. No matter how flexible your job, conflicts inevitably arise. A child gets sick on the day of an important meeting. The preschool Mother’s Day Tea is at 10:30 a.m., smack in the middle of the business day. A meeting runs long, and you must scramble to find someone to pick up your child, because you can’t get to the school on time. An urgent business call comes in at 8 p.m. as you are reading your child’s bedtime story. 