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Week 5 of Pregnancy
Your baby is the size of a Sesame Seed
Baby Development This Week
The heart is beginning to form and will start beating soon. The neural tube, which becomes the brain and spinal cord, is developing.
What You Might Be Feeling
Morning sickness may begin. You might feel more tired than usual and notice breast tenderness.
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Medical Appointments and Tests
Most women discover they're pregnant around this time. Schedule your first prenatal appointment.
Frequently Asked Questions
How big is my baby at 5 weeks pregnant?▾
At week 5, your baby is about the size of a sesame seed — approximately 0.08 inches long and weighing about 0.004 ounces.
Is 5 weeks in the first trimester?▾
Yes, week 5 is in the first trimester, which covers weeks 1 through 12 of pregnancy.
What should I expect at 5 weeks pregnant?▾
At 5 weeks, your baby is the size of a sesame seed. Every pregnancy is different, but common experiences at this stage include physical changes, new symptoms, and exciting developmental milestones for your baby.
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