Many women start counting their pregnancy from the time the pregnancy is confirmed. But pregnancy actually starts the moment the egg is fertilized. Therefore, pregnancy is technically 42 weeks, not 40.

For this reason, most doctors will give you a two-week due date window when confirming your pregnancy. It is hard to pinpoint with accuracy the moment the time you miss your next period. The pregnancy really officially starts the second week when fertilization occurs.

Even though it counts as being pregnant, you really won’t be able to feel any changes. You can do your daily routines, exercise and do everything like you would normally do. If you suspect that you are pregnant and have been trying, it would be a good idea to stop smoking (if you are a smoker) and stop drinking alcohol. Some women have pregnancy symptoms right away. For some women, they will not experience any symptoms until after their pregnancy is confirmed.

Baby’s Development

What makes 42 weeks of pregnancy feel so long is that modern technology has enabled us to find out almost immediately if we are pregnant. There are women who know that they are pregnant within 2 weeks so the total pregnancy seems longer for women nowadays. As for the baby’s development in the first week of pregnancy, there isn’t any. You are not considered pregnant until the second week, which is when conception occurs.

If you take a look at the science of pregnancy, when fertilization takes place and the egg and sperm come together in the Fallopian Tube, the result is called a zygote. Once the fertilization happens, the cells start dividing. The very first week the baby is medically referred to as a blastocyte. The blastocyle will start to take the form of the placenta and the embryo develops inside the placenta. When the zygote stage takes place, there should be 36 chromosomes, which will offer information such as sex, hair color, skin color, eye color and even personality traits as the baby develops.

Changes In Your Body

As for any physical changes in your body in the first week of pregnancy, you won’t notice any. But there are some changes happening that you won’t be able to take notice of. There are some very common symptoms of pregnancy that can affect women within the first few weeks, even starting from the first unofficial week.

Take notice of any of these symptoms: excessive gas, a sense of uneasiness or nervousness, constipation and nausea. As pregnancy progresses you will start to feel exhausted all the time. You may experience mood swings or feelings of depression. It is normal to feel these things. It is very important that when you are confirmed to be pregnant that you makes a list of questions for your doctor. It can be a scary time as well as a joyous time; don’t ever dismiss a feeling that you have. Any concern that you have is an important one.

Pregnancy is a privilege and you should enjoy every last minute of it. Relax and don’t stress out about every little thing. Express your feelings to your significant other, even though they cannot help you carry the baby, they can help you in ways you may not have thought of. In the first week of pregnancy, you are so excited that you start planning everything from baby names to picking out cribs. It is a fun time and planning is one of the best parts.

What To Expect

The first week of pregnancy, there really is nothing to expect as far as what you can see and feel. You will want to start off the pregnancy the right way by eating the right foods, but that doesn’t necessarily mean that you have to turn into a health freak. Increase fruits and vegetables and drink more orange juice for Folic Acid. Take prenatal vitamins and try cutting down on caffeine. Stop smoking and cut out alcohol. Starting an exercise regimen will help the pregnancy go smoother.

Ask your doctor to help you plan out a diet and exercise plan. You don’t have to go crazy but the healthier you eat and the better shape you are in, the fewer problems you are likely to experience during pregnancy. Don’t go crazy, just a simple exercise plan will do just fine.


Although the first week of pregnancy can be pretty uneventful, here are some tips and advice that you can try. Don’t panic about becoming a Mom, you have 42 weeks to worry. Talk to your doctor and discuss every concern that you have. They will not think you are nuts by asking questions about what to expect down the line. Most new moms’ are excited and they want to start shopping and planning baby showers right away.

Slow down, 42 weeks is a long time and in some experiences when new moms get caught up in the excitement it can make 42 weeks seem like 42 months. Choose one baby book, they all pretty much say the same thing anyway. Take each week one week at a time. Before you know it you will be at 40 weeks. Most women believe in not telling people for 3 months until they pass the first trimester and other women can’t wait to tell. Talk to your significant other and you decide when you want to share the happy news. The last and most important piece of advice is don’t stress! Relax and enjoy the pregnancy.