Understanding Critical Periods in Pregnancy Kendra, newly pregnant at approximately 7 weeks along, contacted MotherToBaby late one afternoon with a question that had been causing her a lot of anxiety. Norovirus was running rampant in her home, and she was feeling extremely nauseous. Having found relief with it before, she explained that she had taken […] The post MotherToBaby Interactive Critical Periods of Pregnancy Tool appeared first on MotherToBaby.