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Your Pregnancy Timeline Calculator
Create your own personal pregnancy timeline

  Enter the first day of your last menstrual period and click "Calculate":
Month: Day: Year:

Your Conception Date is:
You probably conceived about two weeks after your last menstrual period.
Your period of greatest risk for birth defects is:  
(Five to ten weeks gestational age)  


Your baby's fetal organ formation begins
Implantation occurs 7 to 10 days after concepton. Blood is formed at 17 days, eyes at 19 days and the heart is pulsing at 24 days. You won't be able to hear the baby's heart beat with your midwife's hand held doppler fetascope until about 12 weeks. (weeks 3-4)

Your baby is now visible to the naked eye
Two brain lobes and the spain are forming. The head is about 1/2 the body length and there are tiny limb buds. By the end of this time period your baby has all the major organs formed and the ears are taking shape! (week 8)

Your baby has hair and his own, unique fingerprints. He would turn his head if you touched it!
The baby is moving though you can't feel it at 2.5" long and 1/2 ounce. Lips open and close and the heart is complete The head is rounder with eyelids. Muscles are developing.Your first trimester is over now! (week 12)

Nausea is probably over now and your risk of miscarriage is less
Your baby is completely formed with eyebrows, pigmented hair (if dark-haired) and finger nails! Your baby has a protective covering of fine hair called lunago at this time. You may feel flutters but don't be disappointed if you don't. Your baby is 6.75" long and weighs 5 ounces. (weeks 12-16)

Growing, kicking, and sucking!
Your baby is aware of sounds outside your body so don't be surprised if he jumps at sudden loud sounds.S/he is protected by a creamy, white coating called vernix. Your belly is going to blossom as your baby grows from about 8" to 10". Moving freely you will be able to feel those kicks now! (week 20)

If your baby is premature, but born after
this date, s/he has a chance to survive:

(weeks 23-24)

Your Third Trimester begins on:
You may notice the toning contractions called Braxton-Hicks. If you are concerned that you won't be able to tell when labor begins, ask your midwife. You will probably start your childbirth education classes at some point around now. (27 weeks)

Perfectly formed!
If your baby is a boy, his testes are descending. The head is in proportion with the body and he is just beginning to put on fat. Those fat reserves under the skin are important for many reasons. This is usually when women start worrying about just how big their baby is going to end up. Remember, the biggest part on a baby is the head and there isn't much difference between the heads of a 7 pouind baby and a 9 pound baby. (32 weeks)
Your baby could be born at home now
Your baby is probably head down down. If not, ask your midwife about external version. There are some midwives who will attend breech births at home but it's simpler all the way around if you make sure your baby is headed in the right direction. You may notice your baby hiccuping as he practices breathing and takes in fluid. (37 weeks)
Your Due Date is:
The baby is getting ready and growth has slowed down. Amniotic fluid is replaced every 3 hours and meconium is in the baby's bowel. S/he could be anywhere from 5 pounds to 12 pounds and 18" to 22". Ask your midwife to take a guess! If you have hired a doula make sure she knows the way to your house. If you plan a water birth practice filling the pool or tub so that there won't be any confusion when the time comes. (37 - 40 weeks is considered full term)
Take it Easy!
It isn't unusual to go "over your due date" by days or even weeks. It will happen when you least expect it. Talk to your midwife about your special concerns.

Tell everyone that this is your due date to avoid those late pregnancy phone calls,
"Haven't you had it yet?"