Pregnancy Month by Month

1 Month Pregnant: Early Symptoms and Baby Development

Learn what happens during your first month of pregnancy. Discover early symptoms, baby development milestones, and essential health tips for week 1-4.

Whether your home pregnancy test is positive or your doctor has confirmed it, congratulations - you are officially pregnant! You are at the beginning of an incredible journey. During the first two weeks of pregnancy you are not technically pregnant, but the lead-up has begun. For calculation purposes, week one is marked by the beginning of your last menstrual cycle.

If your partner's sperm has successfully fertilised your egg by week three, a tiny embryo will have started to form.

You at 1 Month Pregnant

It is rare to feel any pregnancy symptoms yet. You have not even missed a period, so most pregnant women have no idea an embryo is forming inside them. If you suspect you are pregnant and cannot wait, take a home pregnancy test. Read the directions carefully and ensure all equipment is clean for the most accurate result.

Your Baby at 1 Month Pregnant

Your baby starts out as a group of cells multiplying and growing rapidly. The outer layer becomes the placenta and the inner layer grows into an embryo. The placenta transfers nutrients from you to your baby and processes waste.

Once the growing embryo travels from your fallopian tube into the womb, it burrows into the lining of your uterus - this is called implantation.
During the first two weeks of development, a primitive face starts to form with eyes, mouth, lower jaw, and throat beginning to develop.
Blood cells are taking shape to prepare for circulation.
Your baby measures approximately five millimetres - smaller than a grain of rice.

Things to Think About at 1 Month Pregnant

Follow a healthy pregnancy diet: Include a variety of nutrient-dense foods from the recommended food groups to give your baby the best chance of developing healthily.
Start taking folic acid: Folic acid is a crucial vitamin for the healthy development of your baby's neural tube.
Avoid alcohol: There is no proven safe amount of alcohol consumption during pregnancy. The placenta cannot completely filter out alcohol, meaning a percentage still reaches your baby.
Stay hydrated: Drink plenty of water and consider healthy non-alcoholic alternatives.

Kimberly-Clark India makes no warranties or representations regarding the completeness or accuracy of the information. This information should be used only as a guide and should not be relied upon as a substitute for professional medical or other health professional advice.

FAQs on 1 Month Pregnant

During the first month, a tiny embryo begins forming after fertilisation. The outer cells become the placenta and the inner cells grow into an embryo. By the end of month one, your baby measures approximately five millimetres and a primitive face with eyes, mouth, lower jaw, and throat has started to develop.

Most women feel no pregnancy symptoms at 1 month. You have not yet missed a period, so it is common to have no idea an embryo is forming. If you suspect pregnancy and cannot wait, take a home pregnancy test with clean equipment for the most accurate result.

Your baby measures approximately five millimetres at 1 month pregnant, which is smaller than a grain of rice. At this stage, it is a group of cells multiplying rapidly with blood cells taking shape and a primitive face beginning to form.

Yes, start taking folic acid as a pregnancy supplement. Folic acid is a crucial vitamin for the healthy development of your baby's neural tube. Begin taking it as early as possible along with following a healthy pregnancy diet.

No, there is no proven safe amount of alcohol during pregnancy. The placenta cannot completely filter out alcohol, meaning a percentage still reaches your baby. Alcohol can cause problems in unborn babies, so avoid it and try healthy non-alcoholic alternatives.

Implantation occurs when the growing embryo travels from your fallopian tube into the womb and burrows into the lining of your uterus. This is a critical early step where the embryo attaches itself to begin receiving nutrients through the developing placenta.