Your 5th Week of Pregnancy - The First Trimester
Looking for Baby's first year week 5 instead?
Fetal Development - Week 5
You won't believe the changes your baby has already gone through in such a short time. Your baby's heart is 3/4 of the way formed and will begin beating this week! Also developing are the brain, cardiovascular and nervous systems and the reproductive and other major systems. Early this week your baby becomes pear-shaped. The rounded end will become the head while the pointed end will become your baby's spine. Your baby is now known as an embryo and is about 1.5 - 2.5 mm or 0.05 - 0.09 inches in length.
Your Body - 5 Weeks Pregnant
This week may have you feeling even more tired now. As far as the other symptoms, they are very similar to last week - sore breasts, fatigue, backaches, heartburn, morning sickness, and mood swings. You may start to get headaches as your hormone levels rise as well. You can try sleeping in a supportive bra (such as a jogging bra) to help with the breast soreness. Also, eating smaller, more frequent meals can sometimes help with both the morning sickness and heartburn.
There are some women who simply sail through their first few weeks (and often their first trimester) of pregnancy without any symptoms at all. This is perfectly normal and no cause for concern or panic. However, if you have a sudden loss of your pregnancy symptoms, see your healthcare provider as soon as you can.
Follow your pregnancy, week 5 and beyond, with our FREE pregnancy development newsletter! When you subscribe you'll also get access to Member Only Content, Message Boards, Pregnancy Journals, and FREE Tips and Special Offers (including a completely free subscription to American Baby Magazine)!!
Enter your due date
Common Pregnancy Symptoms in Week 5
Early Pregnancy Questions
Babies Online Members in their 5th week of pregnancy have commonly asked the following questions: