.pregnancy.journey.

Mark your calendar!

Here's when you can expect several key pregnancy milestones to happen. (All dates are best guesses, since every woman's pregnancy is different).

June 16, 2010 (2 weeks pregnant)

Your baby's conceived

Doctors start counting pregnancy from the first day of your last period, so at conception you're considered 2 weeks along.

See what happens in your body during conception.

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June 30, 2010 (4 weeks pregnant)

Positive pregnancy test

This week or next, you should be able to see a positive result on a home pregnancy test.

See what your baby looks like in your womb at 4 weeks.

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August 11, 2010 (10 weeks pregnant)

Your baby's heart beats

At your next prenatal visit, you'll be able to hear your baby's heartbeat for the first time.

See what your baby looks like in your womb at 10 weeks.

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September 8, 2010 (14 weeks pregnant)

Announce your pregnancy

If you decided to wait until the riskiest period was over, it's now safe to announce your pregnancy.

See what your baby looks like in your womb at 14 weeks.

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September 15, 2010 (15 weeks pregnant)

Your baby sees light

Your baby can see light now (through eyelids that are still fused shut) and may move if you shine a flashlight at your belly.

See what your baby looks like in your womb at 15 weeks.

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What else is happening with your baby? To get a fascinating weekly update customized for your due date, sign up for our free pregnancy newsletter.

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September 22, 2010 (16 weeks pregnant)

Having a boy or girl?

At your mid-pregnancy ultrasound (typically in the next four weeks), you may be able to find out your baby's sex.

See what your baby looks like in your womb at 16 weeks.

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October 6, 2010 (18 weeks pregnant)

Feel your baby kick

If you haven't already felt your baby kick, you probably will in the next four weeks.

See what your baby looks like in your womb at 18 weeks.

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October 13, 2010 (19 weeks pregnant)

Your baby hears sounds

Your baby should be able to hear your voice now, so don't hesitate to talk, sing, or read aloud.

See what your baby looks like in your womb at 19 weeks.

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December 8, 2010 (27 weeks pregnant)

Your baby can breathe

Your baby's lungs are still immature but could function (with a lot of medical help) if your baby were born now.

See what your baby looks like in your womb at 27 weeks.

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January 12, 2011 (32 weeks pregnant)

Your baby has fingernails and toenails

They're awfully tiny, but your baby has bona fide fingernails and toenails by now.

See what your baby looks like in your womb at 32 weeks.

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February 16, 2011 (37 weeks pregnant)

Your baby is full-term

Your baby is ready for life outside the womb but will probably stay in there for a bit longer, gaining weight.

See what your baby looks like in your womb at 37 weeks.

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March 9, 2011 (40 weeks pregnant)

Your baby's due

Few women actually deliver on their due date. You're more likely to go into labor within a week or two before or after.

See what your baby looks like in your womb at 40 weeks.