How to get Pregnant » Pregnancy Calendar

Pregnancy Calendar

How to Get Pregnant

Having a pregnancy calendar will not only help you know what to expect, but it will also alert you to any developmental problems that may occur so you can discuss with your physician. Below you will find a pregnancy calendar, dated by weeks of age and week of pregnancy.

Weeks 1 - 4; Third - Sixth Weeks of Pregnancy

A zygote starts formation at conception and implants itself onto the mother's uterus. If there are going to be multiples, separation happens. Arm buds and ears begin to form, and the heart begins to beat and the first period is missed, Weeks 5 - 8; Seventh - Tenth Weeks of Pregnancy<

Eyes, nose, mouth, lungs, hands, legs and feet start to develop, the brain divides, and spontaneous limb movements can be seen via ultrasound. The embryo reaches approximately 1.2" in length.

Weeks 9 - 12; 11 - 14 Weeks of Pregnancy

Tooth buds and genitals appear, red blood cells are produced in the liver, the head is 1/2 of the fetus' size, the fetus can make a fist, and the face is well formed. The fetus is approximately 3.2" in length.

Weeks 13 - 16; 15 - 18 Weeks of Pregnancy

Muscle tissue and bones develop and harden, sucking motions are made, the liver and pancreas produce fluid secretions, and fetal skin is nearly transparent. The fetus reaches approximately 6" in length.

Weeks 17 - 20; 19 - 22 Weeks of Pregnancy

Eyebrows, eyelashes, and nails appear, lungs are forming, and movement can be felt by the mother. The fetus is 11.2" approximately in length and weighs 1 lb 10 oz.

Weeks 21 - 31; 23 - 33 Weeks of Pregnancy

Eyelids begin to open and close, the nervous system develops, rhythmic breathing movements do occur but the lungs are not fully mature, bones are fully developed but are still soft, and body fat rapidly increases. The fetus is approximately 15 - 17" in length and weights 4 1/2 oz.

Weeks 32 - 34; 34 - 36 Weeks of Pregnancy

The baby's lanugo begins to disappear, body fat increases, fingernails and toenails reach the ends of the fingertips, and the fetus reaches approximately 16 - 19" in length and 5 lbs 12 oz to 6 lbs 12 oz. A baby born at this point has a high chance of survival although they may require medical intervention.

Weeks 35 - 38; 37 - 40 Weeks of Pregnancy

The fetus is deemed to be full-term at the 37th week of pregnancy, the lanugo is gone except on the upper arms and shoulders, and the hair on the head is now more coarse and thick. The baby is now approximately 19-21" in length and weighs 6 lb 13 oz or more.

Knowing what to expect by looking at your pregnancy calendar, you may be able to realize when things are happening either too quickly, too slowly, or are not happening at all. If you believe that something isn't quite right by reviewing the pregnancy calendar, be sure to contact your health care provider.