The fetus is most vulnerable during the first 12 weeks. During this period of time, all of the major organs and body systems are forming and can be damaged if the fetus is exposed to drugs, infectious agents, radiation, certain medications, tobacco and toxic substances.
When is the most important week of pregnancy?
In general, major defects of the body and internal organs are more likely to occur between 3 to 12 embryo / fetal weeks. This is the same as 5 to 14 gestational weeks (weeks since the first day of your last period). This is also referred to as the first trimester.
What is the hardest week of pregnancy?
9 weeks pregnant: Symptoms
It’s hardly surprising, therefore, that most women whole-heartedly agree that the first trimester is the hardest.
Which trimester of pregnancy is the most important why?
The first trimester is said to be the most crucial period of pregnancy because at this point, your baby is growing from an embryo to a fetus. The fetus then enters a stage of rapid development, forming most organs, facial features, skeletal tissue and limbs.
Why 8th month of pregnancy is critical?
The full development of your baby’s brain and other vital organs such as lungs, eyes, heart, immune system, intestinal system, and kidneys takes place in this final term of your pregnancy. Let’s explain a bit more. Take the baby’s lungs for example – an organ absolutely essential to breathing and therefore survival.
Is first trimester 12 or 13 weeks?
A pregnancy is divided into trimesters: the first trimester is from week 1 to the end of week 12. the second trimester is from week 13 to the end of week 26. the third trimester is from week 27 to the end of the pregnancy.
What does it mean if baby kicks a lot?
Generally, an active baby is a healthy baby. The movement is your baby exercising to promote healthy bone and joint development. All pregnancies and all babies are different, but it’s unlikely that lots of activity means anything other than your baby is growing in size and strength.
What are the signs of a healthy baby in the womb?
Five common signs of a healthy pregnancy
- 01/6Weight gain during pregnancy. Usually expecting mums gain around 12-15 kilos when they are pregnant. …
- 02/6Common signs of a healthy pregnancy. …
- 03/6Movement. …
- 04/6Normal growth. …
- 05/6Heartbeat. …
- 06/6Position of the baby at the time of pre-labour.
Is sperm good for the baby during pregnancy?
Semen and sperm deposited in the vagina during penetrative vaginal sex will not harm the baby.