4 Weeks Pregnant

During your 4th week of pregnancy, your baby becomes an embryo and is approximately the size of a poppy seed.

A lot is happening inside your body right now! You may be suspecting that you’re pregnant and have probably set out to your local drugstore to purchase a pregnancy test.

4th Week of Pregnancy

Your baby has already found it’s home as it nestles into your uterine lining and implants. As soon as it settles, it begins the process of dividing into two groups. The first half is the embryo, which will become your daughter or son. The other half will develop into the placenta.

So many other things are beginning to happen. From now until week 10, all of your baby’s organs will begin to develop and some of them will even begin to function. However, your baby is also it’s most vulnerable. Why? Because it is now that things could interfere with his or her development.

The embryo is the size of a poppy seed and consists of two layers: the epiblast and the hypoblast. It is from these two layers that all of your baby’s body parts and organs will form.

Both the placenta and amniotic sac are beginning to form. The placenta is developing so that it can carry nutrients and oxygen to your growing baby. The amniotic sac is what will house and cushion your baby for the next 8 months. It produces red blood cells and will help your baby receive nutrients until the placenta has fully developed.

How You are Changing

It is possible that during week 4, you will experience spotting and slight cramping. Currently, your body is producing hormones that will keep you from having your period. The implantation of your baby in your uterus is simultaneously happening, so your body may think you are having your period.

You may or may not be experiencing any pregnancy symptoms. While some women do have early pregnancy symptoms, others are completely oblivious and don’t feel a thing.

Early pregnancy symptoms are often similar to PMS and include bloating, cramping, and mood swings.

Positive Pregnancy Test

The hormone hCG (human chorionic gonadotropin) stops your ovaries from releasing eggs. It is also the hormone that pregnancy tests measure. If you take a pregnancy test this week, it is more than likely going to be able to detect that you are pregnant!

However, if you don’t get a positive result, don’t assume you’re not pregnant. Simply wait a few days and try again.