Are you a single mom who loves her kids but is ready for some adult companionship?
She has unique concerns and in a respect, you're dating a whole family.
Evaluate your interest level in this particular woman and your own affinity for dealing with children.
If you don't like kids, it might be better to acknowledge that at the start and look for someone else.
If you're crazy about her, you might want to take a crash course in dealing with little ones.
Focus on your relationship with the woman, and be patient.