Here's when you can expect several key pregnancy milestones to happen. (All dates are best guesses, since every woman's pregnancy is different.)
April 10, 2012 (2 weeks pregnant)
Doctors start counting pregnancy from the first day of your last period, so at conception you're considered 2 weeks along
April 24, 2012 (4 weeks pregnant)
This week or next, you should be able to see a positive result on a home pregnancy test.
June 5, 2012 (10 weeks pregnant)
At your next prenatal visit, you'll be able to hear your baby's heartbeat for the first time.
July 3, 2012 (14 weeks pregnant)
If you decided to wait until the riskiest period was over, it's nowsafe to announce your pregnancy.
July 10, 2012 (15 weeks pregnant)
Your baby can see light now (through eyelids that are still fused shut) and may move if you shine a flashlight at your belly.
July 17, 2012 (16 weeks pregnant)
At your mid-pregnancy ultrasound (typically in the next four weeks), you may be able to find out your baby's sex.
July 31, 2012 (18 weeks pregnant)
If you haven't already felt your baby kick, you probably will in the next four weeks.
August 7, 2012 (19 weeks pregnant)
Your baby should be able to hear your voice now, so don't hesitate to talk, sing, or read aloud.
October 2, 2012 (27 weeks pregnant)
Your baby's lungs are still immature but could function (with a lot of medical help) if your baby were born now.
November 6, 2012 (32 weeks pregnant)
They're awfully tiny, but your baby has bona fide fingernails and toenails by now.
December 11, 2012 (37 weeks pregnant)
Your baby is ready for life outside the womb but will probably stay in there for a bit longer, gaining weight.
January 1, 2013 (40 weeks pregnant)
Few women actually deliver on their due date. You're more likely to go into labor within a week or two before or after.