Week 1

First Trimester

The Journey Begins

Your body is preparing for one of life's most remarkable journeys. The groundwork is being laid before you even know it.

This week's tip

💡 Start your prenatal vitamin today if you haven't already — folic acid in the first weeks is one of the most important things you can do for your baby's development.

Baby this week

Development

  • Fertilization has not yet occurred — this week marks the start of your last menstrual period.
  • Your body is releasing hormones that will prepare the uterine lining.
  • An egg is maturing in the ovary, ready for release.
  • The conditions for new life are quietly being set.

How you might feel

  • You may be experiencing your menstrual period this week.
  • Hormones like FSH are signaling your ovaries to prepare an egg.
  • No pregnancy symptoms yet — conception hasn't happened.
  • A great time to start prenatal vitamins if you haven't already.

Things to do this week

  • Start a daily prenatal vitamin with at least 400mcg of folic acid
  • Avoid alcohol and smoking
  • Schedule a preconception visit with your care provider if not done
  • Track your cycle to confirm your due date later

When to contact your care team

This is general guidance, not medical advice.

  • Contact your care team if you have any known medical conditions that may affect pregnancy.

Partner tip

This is a great time to learn about the pregnancy journey together and align on how you want to support each other.