The first week of pregnancy – ovulation and its fertilization (School of Reproduction & Motherhood)

The first week of pregnancy is the week in which the fertilization process takes place. Minor changes that occur in the body of women this week include clear and sticky discharge, fever and pain in the abdomen. Knowing the beginning of the first week of pregnancy is very important to determine when to give birth.

The first week of pregnancy is usually quite unclear to many mothers and women who are experiencing pregnancy. This week is important only for your doctor to diagnose the time of delivery and pregnancy. The first day is the last day of your period! Of course, the determination of this day will also depend on your regular or irregular menstruation. 

Am I pregnant?

Like many women, you may not experience symptoms in the first week, but in general, fatigue, mood swings, frequent urination, or boredom can be symptoms of the first week of pregnancy, which most women experience. They are confused with premenstrual syndrome. Most doctors calculate (suggest) 40 weeks after the last menstrual period as the time of delivery. According to this method, the time of onset of pregnancy goes back to two weeks before the sperm penetrates the egg. If your pregnancy test is positive, you are far ahead of you, so go to the fourth week of pregnancy .

In the first week of pregnancy, the baby is not yet formed, but soon a developing fetus will emerge. What exactly is going to happen in your body?

A magical event is about to happen! The ovulation process is underway and soon millions of sperm will swim against the current in an attempt to fertilize the egg!

The first trimester of pregnancy: A picture of your growing baby

There are no ultrasound images of your unborn baby in the first two weeks of pregnancy. Although your doctor calculates these two weeks as part of your pregnancy, you are not really pregnant. You are confused, aren’t you? Your doctor will consider 40 weeks after your last menstrual period to calculate your delivery time. Although you are definitely not pregnant on this date, this is the best estimate for calculating your baby’s time of birth. (Unless you use ultrasound images to determine the time more accurately.)

In the beginning of pregnancy, it is very difficult to calculate the time of birth of the baby! Doctors use the last date of the menstrual cycle as the starting point to estimate the birth time of the baby. For most women, the average monthly period lasts 28 days, but the usual interval is between 21 and 35 days for adult women and 21 to 45 days for adolescent girls.

Somewhere between the 11th and 21st day, your baby begins the process that leads to pregnancy. During ovulation, an egg separates from the ovary and travels to the fallopian tube (or fallopian tube). At the same time, the wall of the uterus prepares for pregnancy as it thickens. For about 12 to 24 hours, the egg can fertilize inside the fallopian tube. If sperm reaches the egg, pregnancy occurs. (In this case, although the egg is fertilized, it may take several days for your pregnancy test to be positive.)  But if fertilization does not occur, the egg is transferred into the uterus. In the absence of a fertilized egg, the uterus sheds its wall along with the egg and regenerates it, which is called menstruation.

Although most women know the date of the beginning of their last period, most do not know the exact time of their ovulation. This is why doctors use the date of the last period to estimate the time of birth of the baby. A more accurate way to determine when to give birth is to use ultrasound, although many doctors avoid requesting an ultrasound in the first trimester of pregnancy.

Ovulation: Ovulation ( the time of ovulation ) is when a woman’s body signals hormones to the ovary to release an egg into the fallopian tube. The egg may be fertilized by sperm, or transported unfertilized into the uterus and removed through the menstrual flow.

Your body is changing: If you are trying to conceive (or think you are already pregnant), make changes as soon as possible to improve your health to make sure your body is in the best condition for carrying and feeding your baby. contract. The most important of these changes include cessation of alcohol, tobacco and any drugs.

You may also need to replace or discontinue some of your medications. So it is best to let your doctor know that you are trying to conceive and make sure that any medication you take is safe for your baby.

Mother’s condition in the first week

Rising body temperature:

Signs of approaching ovulation include a rise in the mother’s body temperature. If your body temperature reaches 39 degrees at this time, the situation is completely normal and do not worry.


The body changes this week and you may see clear, sticky discharge. These discharges are also a sign that ovulation is approaching. See your doctor only if the discharge is foul-smelling and cloudy. Vaginal infections can be the source of a bad odor or a cloudy color that, if continued, can lead to miscarriage in the first trimester.

Abdominal pain:

Sudden shooting or mild pain in the abdomen indicates ovulation or the release of an egg from the ovary. This situation is also quite normal.

Fetal condition in the first week

Week 1 to 3: Your delivery date is calculated from the first day after your last period. Pregnancy and fertilization take place about two weeks after this date, and this is just when you become pregnant. In just 40 weeks, your baby will grow to the size of a small watermelon the size of a small seed.

In fact, the size and weight of your fetus is considered zero.

Pregnancy care in the first days

Talk to your doctor about adding a multivitamin to your breakfast. At least 400 mg of folic acid daily can help prevent defects in the baby that may affect the brain, heart and spine, especially if taken before pregnancy and in the first weeks of pregnancy. Make sure your dietary supplements include nutrients such as calcium, iron and vitamin B-12 .

List of essential tasks during pregnancy

Congratulations! You are trying to have a baby and you may be pregnant right now! Here’s a to-do list:

  1. Start taking a vitamin set before you start your pregnancy.
  2. Keep track of the time of your last period.
  3. Have a general history of illness, including genetic illness, with your spouse.
  4. Quit smoking and any habits harmful to your health.
  5. Sleeping for 8 hours a day is essential in the first few weeks.
  6. Do not risk your pregnancy with anxiety and stress.
  7. In the first week of pregnancy, it is essential to have a balanced exercise program along with a proper diet.

Finally, we recommend that you read about fungal infections in pregnancy and pregnancy nutrition week by week in the first trimester of pregnancy in the stars.

Finally, we recommend that you read about fungal infections in pregnancy and pregnancy nutrition week by week in the first trimester of pregnancy in the stars.