3 Weeks Pregnant

Calculating Your Pregnancy

In case you are just joining the newsletter, this is a reminder of how your pregnancy is calculated. Many people have a challenge trying to figure out when they conceived, how far along they are and when their baby is due. The first day of your last menstrual period is date used for estimating your date of conception, your due date and how far along you are.  Pregnancy is tracked from this day even though conception occurs approximately two weeks later.  Many people discover that they are pregnant at about the time they miss their period (approximately 4 weeks after the LMP) and get told that they are four weeks along when in your mind you know conception happened about two weeks ago.  That is because pregnancy is tracked from the first day of the last menstrual period (LMP).

My Growing Baby

My baby looks more like group of cells; it is about the size of the head on a pin.*

3 Weeks Pregnant – Changes for my baby

The blastocyst is growing and multiplying rapidly at this point. Part of the blastocyst will become the placenta, which will produce hCG (human chorionic gonadotropin). hCG is the pregnancy hormone that is detected by pregnancy tests.

Amniotic fluid is also collecting around the cells that will protect and cushion your baby throughout your pregnancy. A lot of basic growth is occurring at this time, including the beginning development of the brain, spinal cord, heart, and gastrointestinal tract.*

3 Weeks Pregnant – Changes for me

Many women do not notice any changes, but some women experience mild cramping and increased vaginal discharge.

During ovulation the ovaries release a mature egg that begins to travel to the uterus through the fallopian tubes. Sperm travel through the uterus to fertilize the egg within the fallopian tube. Only a single sperm fertilizes an egg. Both the sperm and the egg contain 23 chromosomes that will combine to make up the zygote which contains a total of 46 chromosomes. At conception, your baby’s gender, eye color, hair color, and much more has already been determined. The zygote continues to travel through the fallopian tubes into the uterus where it will attach itself to the uterine wall.

3 Weeks Pregnant – Planning this week

Exercise is important during pregnancy.Consult your healthcare provider before beginning or continuing an exercise routine. In most circumstances, if you are already on an exercise routine, then you likely can continue your active lifestyle. Check out our list of the top recommended exercises during pregnancy.

Remember that your baby is taking in everything that you do, both good and bad. You want to avoid alcohol, illegal drugs, certain medications, certain foods, caffeine, and smoking.

Nutrition is also important this early in pregnancy. Folic acid and other essential nutrients and vitamins are necessary for fetal growth and a healthy pregnancy. Eating a balanced diet high in protein and calcium is also beneficial for both you and the baby. If you have questions, check with your health care provider to see what dietary recommendations they encourage.

My Pregnancy – Health Tips

Your body is beginning to go through some drastic changes, and this can be an overwhelming time. Make sure that you do not neglect getting adequate rest and nutrition. Take time to relax and enjoy being pregnant.

My Pregnancy -Tips for my partner

Both you and your partner may have fears that begin to emerge now or during the next several weeks, even if this was a planned pregnancy. Be open with each other and discuss these with one another. Ask questions so that she feels you want to be involved in the pregnancy. Take time to plan little ways that you can support her and surprise her over the next 37 weeks.

Last Updated: 10/2012

* All measurements are provided as a general guide for common pregnancy development which may vary depending on the nutrition, mother’s health or accurate dating of conception.  Every pregnancy is unique and may be experienced differently even for the same woman.  It is important to undertand that babies develop at a different rate even before they are born. The purpose of this developmental information is to give you a general idea of how your baby is growing, and you must remember that your baby’s growth may vary from that which is outlined.

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