Miscarriage usually occurs only in the first trimester of pregnancy. Ten to 25 percent of pregnant women suffered miscarriages. This may be the reason most couples announced a pregnancy after miscarriage risk subsided.
Here are some of the factors that increase risk of miscarriage during pregnancy:
Factors that increase risk of miscarriage
Genetic problems are responsible for approximately 90 percent of miscarriages that occur in the first trimester of pregnancy. Babies inherit 23 chromosomes from each parent. If one of the chromosomes is damaged or lost, it can cause complications and miscarriage.
The specific type of infection.
Sometimes pregnant women suffering from cervical infections or other infections such as chlamydia, Mycoplasma, Ureaplasma or gonorrhea. All this type of infections proves to be fatal to the growth and development of your growing baby and can cause a miscarriage.
Progesterone is a hormone that is essential during pregnancy. Sometimes when the body cannot produce sufficient amounts of this hormone and miscarriage can occur.
Blood clotting disorders.
Sometimes certain blood abnormalities can occur in women. This condition can cause clots in the placenta, can further inhibit oxygen and nutrients to the fetus which cause a miscarriage. Read also: Clotting Disorders can Cause Recurrent Miscarriage.
A miscarriage can also occur if a woman suffers from problems of anatomy. This may occur when the uterus is responsible for the fetus, not well formed and caused a miscarriage.
The possibility of miscarriage per pregnancy week.
The possibility of a miscarriage at week 3 through week 4 of pregnancy.
This is the phase when the process of implantation occurs approximately third until the fourth week of pregnancy. About 50 to 70 percent of women experience a miscarriage this week.
The possibility of a miscarriage at week 5 of pregnancy.
When entering the fifth week, the risk of miscarriage can be quite varied. According to a study, the risk of miscarriage can be reduced to about 20 percent in the fifth week.
Age also plays a significant role in determining the chances of miscarriage risk. If aged under 30 years, you risk 9 to 17 percent, however, if Moms over the age of 40 years, chances can be increased from 40 to 80 percent.
The possibility of a miscarriage at week 6 to 7 of pregnancy.
Around this time, you may be able to hear the baby’s heartbeat for the first time. Therefore, the risk of miscarriage is greatly reduced, which is only 5 percent of pregnancies.
The possibility of a miscarriage at week 8 to week 13.
When entering the phase of this pregnancy, you almost reach the second half of the first trimester. This means that the risk in the eighth week is very low. Just 2 to 4 percent of pregnancies that miscarry at this stage.
The possibility of a miscarriage at week 14 to 20 of pregnancy.
As you approach the end of the first trimester, the risk of miscarriage becomes low enough to likely do not occur. Less than one percent of the women on this pregnancy miscarry. If a miscarriage occurs at week 20 or more, it is not called a miscarriage, but the stillbirth and you may have to undergo the labor to give birth to the baby.