What Happens In The First Trimester of Pregnancy

Thu Aug 18, 2022

Normally, a pregnancy lasts for 40 weeks and this period is divided among 3 trimesters to help a woman take care of her baby in a proper manner.

The first trimester occurs between fertilization of the egg by Sperm (conception) and lasts till Week 12.

During these 12 weeks a woman goes through numerous changes. This is what we are going to discuss today and help you understand. What to do in different kinds of situations.

What happens to the body of a woman in the very first trimester?

The first trimester women's bodies undergo numerous changes. It releases hormonal substances that impact every organ within the body. The first sign that you might be pregnant is the absence of the menstrual cycle. In the beginning, as the weeks go by, women have the following symptoms:

  • tiredness
  • upset stomach
  • throwing the ball up
  • mood shifts
  • soft breasts
  • heartburn
  • weight gain
  • headaches
  • desires for particular food items
  • dislike of certain food items
  • constipation

It is possible that you need to sleep more , or eat smaller meals at this point. Certain women don't experience one of these signs in any way.


How does the fetus develop in the very first trimester?

It is the first day you are pregnant. This also happens to be the day you begin your last menstrual cycle. Between 10 and 14 days later, the egg is released and combines with sperm, and the conception takes place. The development of a baby is rapid in the initial trimester. The fetus starts to create a spinal cord and brain and the organs begin to grow. The baby's heart is also expected to begin to beat in the initial trimester.

Do I remain fit during the first trimester of pregnancy?

It is crucial for women to know what to do and avoid during pregnancy in order to be able to care for themselves and their growing baby.

What to do

Here are some good medical precautions you can take in the first trimester of pregnancy:

  • Prenatal vitamins are essential.
  • Exercise regularly.
  • Find your pelvic floor by performing Kegel exercises.
  • A diet that is high in vegetables, fruits as well as low-fat protein forms and fiber.
  • Take plenty of water.
  • Get plenty of energy (about 300 more calories than the normal).

Things To Avoid

These are the things to avoid during the first trimester.

  • vigorous exercise or training that can cause injuries to your stomach.
  • alcohol
  • coffee or tea (no greater than one cup tea or coffee each day)
  • smoking
  • Illicit drugs
  • raw fish or smoking fish or smoked seafood (no sushi)
  • shark mackerel, swordfish, and mackerel, shark or (they have high levels mercury)
  • Raw sprouts




Ashutosh Bhardwaj, MBBS, DCH, PGDUS, PGPN
He is a Pediatrician and Neonatologist with passion of teaching on pregnancy diet and nutrition, scientific womb talk trainer, and baby brain development trainer.