Missed period and time of wonder. Stay active, eat healthy, and resist drinking alcohol.

Heartbeat is easily detectable via ultrasound. Baby develops this 4 weeks from the size of a sesame seed to a kidney bean.

This week ends your first trimester. Coming weeks will bring relief for morning sickness and bladder pressure.

Legs and arms begin to develop rapidly in the next 4 weeks. Baby will begin to suck and blink eyes.

Week 20 marks the halfway point in your pregnancy. Your now 10 ounce baby will begin to poke and kick.

You're already nearing the end of your 2nd trimester which will be at 27 weeks. Ultrasound will reveal sex.

Your baby has reached the premature threshold where delivery can be survivable. Baby begins to breathe.

During this period the baby will reach half of their eventual birth weight. Hair and toenails will come in.

Baby is practicing breathing motions. Braxton Hicks contractions will increase in frequency. Pack hospital bag.

This week your baby reaches full term. By this time everything should be ready for baby to arrive.

If you haven't delivered you will soon. It's not uncommon to carry into the 39th week. Welcome home Baby!