9 weeks pregnant

At 9 weeks pregnant, all of the essential organs have begun to grow. You're in the first trimester, about 7 weeks after conception, because pregnancy is counted from the first day of your last period.

Not sure how far along you are? Try the pregnancy week calculator, or get a free ultrasound at a local pregnancy center.

What's developing at 9 weeks

  • All of the baby's essential organs have begun to grow. They keep developing for the rest of pregnancy.
  • The arms grow and elbows develop, and the toes can be seen.
  • Nipples and hair follicles form.

The first trimester lasts through week 13. A lot of development is packed into these weeks.

If you're not sure what to do

You don't have to decide everything today. It can help to know how far along you are, what all of your options are, and what support is out there.

← 8 weeks  ·  10 weeks →

Sources

  1. MedlinePlus. Fetal development.
  2. ACOG. How your fetus grows during pregnancy; Abortion language guide.
  3. ACOG. Methods for estimating the due date.

Common questions

What is developing at 9 weeks pregnant?
At 9 weeks, all of the essential organs have begun to grow. The arms grow and elbows develop, and the toes can be seen. Nipples and hair follicles form.
How many weeks since conception is 9 weeks pregnant?
About 7 weeks. Pregnancy is counted from the first day of your last period, and conception usually happens about two weeks after that.
How can I find out for sure if I'm 9 weeks pregnant?
An ultrasound is the most accurate way to know how far along you are, especially in the first trimester. Many pregnancy centers offer one free.

Last updated 2026-11-03. Medical facts on this page are drawn from the sources listed at the end and on our sources page. This is general information, not medical advice.

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