Which stage of pregnancy is the longest?
Elephants. Elephants have the longest gestation period of all mammals, carrying their young for 18 to 22 months before giving birth.
How can you tell if your baby is abnormal?
An ultrasound creates pictures of the baby. This test is usually completed around 18–20 weeks of pregnancy. The ultrasound is used to check the size of the baby and looks for birth defects or other problems with the baby.
What is the most important stage of prenatal development?
The fetal period of prenatal develop marks more important changes in the brain. This period of development begins during the ninth week and lasts until birth. This stage is marked by amazing change and growth. The early body systems and structures established in the embryonic stage continue to develop.
What body part is formed first in the womb?
The heart is the first organ to form during development of the body. When an embryo is made up of only a very few cells, each cell can get the nutrients it needs directly from its surroundings.
What are the environmental factors that affect prenatal development?
Other teratogens that affect prenatal development include radiation, pollution, and infectious disease. Radiation increases the risk of childhood cancer, as well as emotional and behavioral disorders; because of this, it is recommended that pregnant women avoid x-rays unless absolutely necessary.
What are 4 environmental factors that can harm a fetus?
Environmental factors which have been implicated in adverse pregnancy outcome include smoking, video display terminals, anesthetic gases, antineoplastic drugs and exposure to lead, selenium and inorganic mercury.
What are four environmental hazards that can affect a fetus?
These chemicals include commonly known hazards such as lead, mercury, and environmental tobacco smoke, as well as some pesticides, solvents, products containing chlorine, and other chemicals referred to as “persistent organic pollutants.” The fetus is particularly vulnerable to environmental chemicals that can disrupt …
How a mother’s emotional health can affect her fetus?
Benefits of emotional health during pregnancy When you feel happy and calm, it allows your baby to develop in a happy, calm environment. However, emotions like stress and anxiety can increase particular hormones in your body, which can affect your baby’s developing body and brain.
What toxins should be avoided during pregnancy?
Pregnant women can limit exposure to certain day-to-day toxins, though….Following is a list of chemicals to avoid during pregnancy.
- Pet medications and waste.
- Smoking and vaping.
- Lead.
- Pesticides.
- Cleaning products.
- BPA.
How does tobacco affect the fetus?
Tobacco. Smoking during pregnancy increases the risk of health problems for developing babies, including preterm birth, low birth weight, and birth defects of the mouth and lip. Smoking during and after pregnancy also increases the risk of sudden infant death syndrome (SIDS).
Will one cigarette a day hurt my baby?
One cigarette a day is one too many. Every cigarette you smoke narrows the blood vessels in the umbilical cord, reducing your baby’s oxygen supply. Just one or two cigarettes a day can increase the risk of premature delivery, stillbirth, low birth weight, and other complications.
At what stage of pregnancy does smoking affect the baby?
How Can a Premature Birth Harm Your Baby? If you smoke during pregnancy, you are more likely to give birth too early. A baby born 3 weeks or more before your due date is premature. Babies born too early miss important growth that happens in the womb during the final weeks and months of pregnancy.
Can smoking in early pregnancy harm baby?
Smoking during pregnancy can also affect a baby after he or she is born, increasing the risk of: Sudden infant death syndrome (SIDS) Colic. Asthma.
What if I smoked in early pregnancy?
Smoking during pregnancy raises the risk of your baby being born with birth defects. The most common types of problems are congenital heart defects and problems with the structure of the heart. Other health issues that have been linked to smoking while pregnant include cleft lip and cleft palate.
What if you drank the first month of pregnancy?
It’s not really about the harm done by what you drink before you’re even pregnant (though this may affect your ability to conceive). It’s that no amount of alcohol at any point in pregnancy has been absolutely proven to be safe.
Can alcohol hurt a baby in the first month?
Some studies have suggested that consuming alcohol during the first few weeks of pregnancy can harm the development of the fetus. However, other studies have suggested that drinking during the early days of pregnancy does not harm a developing fetus.
Can you get drunk if your pregnant?
Your baby cannot process alcohol as well as you can, and too much exposure to alcohol can seriously affect their development. Drinking alcohol, especially in the first 3 months of pregnancy, increases the risk of miscarriage, premature birth and your baby having a low birthweight.
How early can pregnancy be detected?
You should wait to take a pregnancy test until the week after your missed period for the most accurate result. If you don’t want to wait until you’ve missed your period, you should wait at least one to two weeks after you had sex. If you are pregnant, your body needs time to develop detectable levels of HCG.