First Trimester - What exactly is a trimester?
Every pregnancy is divided into three time periods, or trimesters, which are each about three months in duration and called the first, second, and third trimesters.
Second Trimester
Third Trimester
hGC Levels
Fetal Development and Symptoms
Check out the development phases, and possible symptoms that might be experienced during your maternity via the following link: Pregnancy Week by Week. Discover when your baby’s eyelids and toes form. Find out when your baby can frown turn its head or hiccup! Did you know that by week 5 in your first trimester your baby is 10,000 times larger than the fertilized egg! And that by week 8 of your first trimester that your baby begins to hear. By week 9 of your first trimester your baby's heart has 140-150 beats every minute - about twice as many as yours!
First Trimester - When does the first trimester end?
When does the first trimester end? How long is the first trimester? The following table provides details of the duration and time periods for each of the Trimesters of pregnancy, including the first trimester:
First Trimester - Trimesters |
| First Trimester | Conception to 12 weeks |
| Second Trimester | Week 13 - Week 28 |
| Third Trimester | Week 29 - Birth of Baby |
First Trimester - Trimesters |
The first trimester carries the highest risk of miscarriage. During the second trimester, the development of the baby can be more easily monitored and diagnosed. From the beginning of the third trimester the baby is able to survive, with or without medical help, outside of the womb.
First Trimester Screening for Downs Syndrome & Confirmation of pregnancy dates
First Trimester screening is carried out to help identify increased risks of Down syndrome and other fetal abnormalities in a fetus, particularly for older women who have higher risks of such pregnancies. First trimester screening is a prenatal screening test performed at 11-14 weeks. Prenatal screening in the first trimester requires an ultrasound and blood test. A nuchal scan (NT scan) is a prenatal sonographic screening scan (commonly known as an ultrasound or scan). The first trimester ultrasound scan provides your first glimpse of your baby - remember that the fetal image is enlarged to fill 75% of the screen! Multiple gestation can also be detected on ultrasound during the first trimester screening. The first trimester screening also confirms the accuracy of the pregnancy dates.
First Trimester Pregnancy symptoms
First Trimester Pregnancy symptoms. There are various symptoms associated with the weeks during the first trimester and unfortunately approximately 70% of all pregnant women suffer from morning sickness or feelings of nausea at this time. Other symptoms during the first trimester include fatigue, swollen breasts, darkening of areolas (the skin around your nipples), headache, backache and frequent urination. Cravings for unusual food can also occur during the early stages. The first trimester carries the highest risk of miscarriage.
Question: Can you fly during First Trimester?
One of the most common questions asked by pregnant women is can you fly during first trimester? For the vast majority of women it is safe to fly during first trimester as long as you are experiencing a healthy, normal pregnancy. Obstetricians and Gynaecologists recommend that women don’t fly after their 36th week of pregnancy and some airlines have there own restrictions, so it's worth checking these and also checking that your medical insurance covers all eventualities which may occur if you fly. So healthy pregnant women can fly during First Trimester but some of the symptoms experienced during the first trimester such as sickness, nausea, headaches and backache can be made worse by flying. Always veer on the side of caution. It is always a good idea to discuss your travel plans with your doctor before you fly.
